>>16527234
Because it takes (nearly) everything that made the previous 3 games great and adds more, on top of avoiding the recent cancerous trends that ruin gaming (lootboxes, microtransactions, invasive DRM (removed recently), shitty reboots, SJWs and shoehorned politics). it's straight up an upgrade from its predecessors, fixing plenty of annoyances (Tails 1P control, Sonic getting a more useful ability, separate transformation button, can turn off super theme, etc.), and old characters that were under the bus for over 20 years.
Only thing you could nitpick is too many rehashed stages, no Blue Sphere from S&K, slow Puyo Puyo gameplay and lack of Tsuu rule, missing stages (including encore versions) in competition. and maybe co-op splitscreen.
>>16527411
I believe there are people there who know what they are doing, but they won't ever be in charge given that currently a game's goal is (((profit maximization))), which clashes with quality and player satisfaction.