I haven't played Civ VI, so I can't say I would hate or love the civics tree.
But I actually love the system we have in Civ V. It feels like you are actually building a long lasting civilization that your earlier decisions could have ramifications in the long run.
Pick Traditional and not Liberty? Too bad, no Pyramid for you, but people in your capital is full and able to work all tiles and all citizen slots.
Also Civ V, for now, seems to be more streamlined in the gameplay, so you only think about placements and such, and build up your civs more efficiently so that you can reach victories however you like. I have multiple times aiming for cultural victory but in the end got science victory instead (with my units parking outside the last opponent only city's border)
In Civ VI, you got so many things to think about: city placement, district placement, civic cards, city states envoys, etc with the same 500 turns limit on normal speed (if you chose to limit the turns). I afraid taht in the end you will be raking in gold and steamroll the opponents anyway, and thinking that what's the point of the early micro managements?
Some may enjoy it, some may be overwhelmed.
But Civ VI is not out yet, so I withhold judgements until later.