I mean, are you assuming that there is a majority of players who have a metaphorical gun-to-their-head and are being forced to play 5.5 against their will?
I don't believe that. First, I think the buy in level for 5.5 is far greater than the number of people who frequent Enworld or Reddit or other forums. But even so, I've been told on MULTIPLE occasions that mismatches between DM and player expectations can and should end in one or the other leaving. I mean, if the DM won't let me play a dragonborn or is running Dark Sun or is rolling 3d6 in order and I don't like it as a player, I'm expected to acquiesce to the DM or find another group (because the DM can always replace me with someone who will). Yet, when it comes to finding a game that isn't 5.5, those tyrannical DMs are just not being fair and forcing you to play an edition you don't want! Won't somebody think of the grognards!
I was told on this very board that No D&D is better than Bad D&D. If you think 5.5 is Bad D&D, your choices are the same as mine when the DM won't let me play my Dragonborn Paladin in Athas: acquiesce or don't play.