I'm just just trying to help man.You replied to literally one specific part of my post just so you could say that "Gotcha!" moment.
Its alright but its a lot weaker than other civs. The weak early game makes things harder. The lack of faith and science makes things harder. The Ducal Stable does very little for a typical tradition empire, I skip stables as tradition pretty often. The Winged Hussar doesn't support defending yourself very well (compared to stuff like Camel Archers or H'wacha).I might be relying on outdated experience but isn't Poland also good at Tradition? And what about ideologies? This isn't an argument btw, I'm just asking a question.
So on flexibility, you can play tradition Aztec. Its not illegal. You can play any civ with any social policy you want. The question isn't what can you do, the question what can you do and its actually strong. Flexibility would mean having more than one choice that works well. Poland is a good choice for newer players, because he doesn't push you in any one direction. People seem to feel free to try anything with Poland (which is good). In fact, I can't say for sure that authority Poland is weak, I just haven't found how to make it work yet. So many players, old and new, seem to think there is only one path in the game (I'm a warmonger, I pick authority, fealty, imperialism, autocracy every time). Poland doesn't have that, which is needed in the game.
As for counter-play, he has no ancient era bonuses. Kill him! He is overall a pretty crappy civ until ideologies, so kill him (or attack to weaken him) before then. He also doesn't directly buff any win condition, so as long as he doesn't run away with the game it pretty easy to just win before he does.