I think he made some really good and instructive points though, these are really relevant if you want to get better at game design. But I also agree that you have to look at this game as a demo and not expect it to be perfect in any way besides being a nice showcase of what you can achieve in just a week.
I'm impressed by what I've seen on lessmilk up to now by the way. Not in terms of coding (all of these games are almost trivial to implement), but all the more by the thoughtful game design that went in of them. Literally all of the 9 games so far have been fun to play, if only for a few minutes. I think it's much harder to come up with a new game concept every week, no matter how simple it is, and executing on it, than it is to actually do the coding to implement it. So thumbs up for that!