I found them quite boring since they are all repetitions on the same theme - just drawing lines on a square. It could have been a mobile game. The world doesn't feel connected to the puzzles, and the exploration aspect of it could have been a completely separate game. It feels like two games glued together, which is IMO not a good design.

It's also not a game that's very demanding from a technical performance perspective, and really has very limited numbers of active entities / animations, so why should I care about his opinions on game architecture or anything else?