While he clearly isn't satisfied with the game and he should find something to do, doesn't mean he's wrong.
Most patches are just adding more side stuff, rather than improving the game aspects that really need improvement.
The vehicles still seem like they were in the beta. Laggy, stupid controls, and fairly limited.
Mobs are boring. Not only are they basic but there isn't enough variety. We need sea monsters, sky monsters, and monsters that cause different kinds of debuffs. A unique variety. Not villager zombies and mobs with armor/weapons.
I have a world that I've convinced myself is entirely ocean by chance. This makes surviving incredibly easy, which is completely opposite of any other game/real world. The difficulty is on hard and I can survive with just an iron sword and some bread.
I understand "bla bla bla it's sandbox you're supposed to be creative". Yeah, creative mode is fine. For people who like extremely simple looking things. But that's not what this is about. The survival is terribly lacking in it's own genre. The only way you can possibly die is if you intentionally put yourself at risk, or play in a PvP server, as broken as that is.
If I wanted to just build, I'd play Blockland. I've got smaller shapes to work with and modding it is a hell of a lot better. I can make so much more in Blockland than I can in Minecraft, build and mod wise. Whenever I see minecraft mods, it's either gimmicky, not very interesting, or requires you to have a separate copy of the game because you had to stuff files into the main .jar file.
But, I'm not saying Minecraft has no potential and is not a fun game. It could just be a lot better than it is.
The development process seemed unprofessional at that. I swear they just labeled it alpha, beta, and complete just because they felt like upping the price.