I've heard several people voice their opinions about this. Most have commented they do perfer the V2 version of the map but also said they'd like for this to be a yearly seasonal change "update" since the map is christmas themed if it could preview around that time. (Like would be an fitting timeslot for it December 1st till Febuary 28th?)
Personally I like the christmas version cause the additional doomsday options and it's just a pleasent change with it's snow atmosphere, the present easter egg, the nether looks pretty good aswell. It's just a refreshing change from the original.
also some places that were easier to get to are now long and difficult as well as some areas simply don't exist anymore
To my knowledge what's missing
-The Mushroom Biome (Pretty much only used to skip the obby)
-The storage room shortcut is boarded off,
-The pool teleports
-The control point which was just an annoyance if anything
-The donor/noclip room teleport in storage
-The (?) button for doomsday.
-The donator statue room's glass panel
-The bar set glitched in the aether.
- (And possibly the most controversial thing) The Pee Pee Parkour text in the Aether has vanished.
Feel free to add if I'm missing any but with just this limited list, I couldn't justify this as a bad map per say.