They criticize him probably because Griffith is still thinking he's a good guy probably. And that the God Hand are probably people who can and will criticize each other because they are still ostensibly "bad" forces
These fucking dorks... I have my own words about Tsumugi Musawo's works, but I am definitely at least looking forward to two awkward dorks playing ring around the cliches for at least 20 chapters
If we're talking body shape rather than weight alone, that's rather easy to accomplish in a short amount of time. The key thing is making those change stick through habits so she doesn't more or less relapse