And this is not a Brazilian phenomena, and not a new one either.
While I disagree somewhat with the details of your main points (the timeline is a bit sketchy, and the alleged dichotomy between "European football" and "jogo bonito" is a charicature), this is a good and interesting general conclusion.
It appears that many people are upset with Brazil's playing style to the point of taking it almost as a personal offense, as if they'd built their whole view of football around an (immutable and axiomatic) ideal of how Brazil HAS to play, as if Brazil wasn't a normal team.
This is largely based on an outdated stereotype and in a larger myth that was never true to start with. The myth, which at times was probably also self-serving, is of course the samba football, the carefree and pure athletic expression of this tropical utopia (if you're a well-off foreign, that is). You just had to go to Copacabana watch some beach football games to unearth world class footballers. The next year you dress them in the yellow shirt and they're taking the world.
The reality is that Brazil was, for decades, at the forefront of tactical and technical innovation in scouting, training methods, conditioning, etc. While individual technique took centre stage, and that's what everyone remembers, it was potentiated by a strong attention to physical preparation. As early as mid 50s, Brazilian head coaches were assisted by specialists in the physical aspects of training. Whenever they felt or realised other countries had made a breakthrough in that area, Brazilian football quickly incorporated and expanded on that.
On the other hand, while Pelé, Garrincha, Rivelino, Zico, Sócrates, etc. mesmerised audiences all over the world, Brazil was never immune to be involved in rough play. The 1954 Battle of Berne - regardless of which team was the initial culprit - is well documented. In 1974 Brazil left the WC with its reputation in dire straits being accused of much the same things as this year: abandoning their traditions of free flowing samba football, violent fouling, etc.
luiz is correct in pointing out the roots of the current "style" are deep. For the last quarter of a century (probably longer than the age of many posters here) Brazil has played different formations (4-4-2 in 94, 3-5-2 in 2002, 4-2-3-1 now), but almost invariably these have included 2 holding midfielders, whose main qualities are defensive. Safety first! (For whatever reason, this appears to pass for "European-style" football in the discourse of some brazilian fans)
In front of them, we find the creatives, which have traditionally been relatively free from tight tactical systems or formations. It's not much different from the 2014 team really. The difference is that the current attacking players are, on average, worse than those of 12 or 20 years ago. The reasons for why that might be the case are probably a topic for another thread. But if this team was blessed with the likes of Ronaldo, Ronaldinho, Rivaldo, Romario, etc. on their prime, there wouldn't be any fundamental distinction to other teams of the past 20/25 years.
What Scolari is failing to do, partly because he's a tactical troglodyte more interested in cheap psychology with mystical overtones, is that the team requires a new paradigm change. Having a team with a handful of athletic bouncers whose role is to free the skilled "creatives" up front no longer cuts it at the top level.
These trends take some time to be fully felt in NT football (NT football is more chaotic, so to speak, owing to the little preparation time relative to club teams in top leagues) and, all things considered, Brazil probably still has the highest individual quality across all positions (on average), so they are perfectly on course to win the WC (even without Neymar).
I do agree with luiz's assertion about the future though. A win here could sow the seeds of future failures (unless something drastic changes) at the hands of teams like Germany whom, nevermind some of their current inefficiencies (and let's not forget Germany's best player - or at least, their best player of last season - is also out injured), have understood the changes in how football is played that took place in the last 10 years or so.
And yes, that goes beyond correcting the levels of aggression, tactical fouling and whatnot.