This sounds an awful lot more like confirmation bias. YOU are switching to a new game, therefore, everyone else must be unhappy too.
Again, there is zero evidence of this. It's not like any other game is rocketing up the charts. Even the #2 game out there, Pathfinder, is barely a blip on the radar. Anything else? I doubt the majority of gamers out there have even the slightest idea that these games exist. Nor, do they care.
Remember, the vast majority of 5e gamers are first time gamers. For them, it's all new. Did you switch to different systems after your first D&D campaign? Were you disillusioned with D&D after a year and a half of play? Exactly how long was it before you started playing a different system? Now, ask your current players the same question. Heck, I presume, you've stuck with D&D for six years. That's probably four years longer than you stuck with any other edition before at least trying out different games.
So long as we're seeing this massive influx of new gamers, there is zero chance that WotC gives the slightest fig newton what you or I want.