You left out the part where I said somewhat, and also the cata talent system is substantially different from the classic talent system, as specializations were introduced, and you were locked into filling out your specs talents before you could talent into another specs, on top of the removal of many talents.
From the wiki:
With [patch 4.0.1] specializations were introduced, creating three fixed specs for each class with a pre-determined combat role. Talents continued to be significant choices, but were no longer so critically responsible for determining the player’s capabilities. Dozens of talents were removed, and others saw their number of ranks reduced. The number of talent points was reduced accordingly from 71 to 41.
With the introduction of specializations, talent trees were for the first time locked, with initially only the tree corresponding to a character’s chosen specialization being available for selection. By spending 31 points in their ‘primary tree’ players were able to unlock their other trees, and could then spend any remaining points as they wished. However, because of the progressive nature of the trees, this limited players to relatively insignificant talents from their ‘secondary trees’, with players having enough points to access the first tier of both of their secondary trees, but the second tier of only one of their secondary trees. This was intended, serving to allow Blizzard to focus on creating three separate and succinct specs for each class, with the aim of improving balance and deepening and refining the character and playstyle of each spec, and was also argued by some to make the previously overly-complex talent trees far easier for new players to get to grips with.
These changes resulted in a far smaller degree of choice in talent selection, with each max-level spec capable of a relatively small number of possible builds. While players were still free to spend their last 10 points in any tree, some players bemoaned the loss of true hybrid specs from the game, with many previous combinations now made impossible. Additionally, while talents remained the source of many of players’ most powerful abilities, due to the far more limited and rigid nature of the Cataclysm talent trees, the total number of possible builds at max-level was greatly reduced, in turn reducing the importance of players’ talent selections. As later described by Blizzard in the run-up to Mists of Pandaria, the Cataclysm model made players’ choices far less significant, because once the most important talents had been secured, the question of where to spend their remaining points had relatively little impact on their character. In this way, the Cataclysm model moved players closer to a “cookie-cutter” situation, with relatively little talent variation seen between most characters of a given spec.
TBC classes were literally just more fleshed out versions of the vanilla classes. Things were added, and very little was removed or reworked. Wrath didn’t do too much either beyond add more to classes, and what was reworked, wasn’t as drastic as cataclysm, classes still kept the same general ideas from vanilla/tbc.
And removed so much of the content that had sentimental value to a lot of people, which was inherently unpopular.
What are these false reasons? You haven’t stated any.