I think both WW and LHW is a bad move for him
Especially WW tho, when he was 22/23 he said his cuts were super difficult and would compromise his camp and his performance. At 33/34, that's gonna be way harder to do
And while I don't think WW is too crazy right now with the level of competition, one of Rob's big advantages at MW is his speed and he's basically losing that at WW
LHW is pretty self explanatory, that's just a bad move and Rob's too small. He could beat someone like Smith maybe due to the skill gap being pretty wide, but other guys such as Jiri, Ank, Khalil and Pereira are gonna give him hell
I get that MW is looking like a hard road for him losing to multiple top five guys now(DDP, Khamzat and Izzy twice), however that's definitely his ideal weight division
Rob seems to kinda know this now and even DDP who's a huge fan of Rob admitted that the road back for him is a long one. It doesn't help that two of those losses were pretty recent and in pretty dominant fashion(DDP and Khamzat)