Just looking over those reasons. Guessing you already know most of this but just gonna post for clarity anyway.
1) Agreed, not the only titan with this obviously, Luci etc so I wouldn't put that on the list of why he's considered the best.
2) Again Luci can use his unique pearl for the same result, demo can use shade (if you play him properly), others too, doesn't seem a cause for concern with the recent phoenix nerf either.
3) Pretty sure (almost 100% sure) he has the exact same chain heals as luci, syph, volt, few others.
4) Again, his main heals the same as others.
@Neco Can you confirm this 3 and 4?
I feel like Molt just seems to suit your play style to be honest (minion hunting, fast wins etc, sieging through minion heal superiority etc). I don't think any of those are what makes him "OP" as such. I don't know, I'm just trying to figure out why he is considered so good when realistically it just seems like people just enjoy playing him and end up learning him more.
From what I've seen watching good titans play him it seems to be a combination of his unique burning buildings as he sieges and having minion nuke superiority so they can't rewall or repair lower hp walls that got burned. I don't know right now though. Hmmmmmm.