Ohno Gamexplain noted some Easter Eggs are missing, that means I can strawman their entire review and say they didn't like it* because of that while ignoring their other criticisms, such as a more cramped workspace than the first game, worse feeling editing controls, multiplayer being poorly implemented (having to individually download levels to play them on local multiplayer, can't choose which levels to play for online, can't play with friends), lack of cohesiveness with the 3D World theme and the others, lack of basic features in the 3D world theme like enemy stacking, lack of amiibo costumes/pipe stacking, etc.
*They actually like it though.