I was also confused about this too, I played Machinist back in 4.0 and I felt that I picked it up way easier then I do with the SHB one.

I understand the weaving for Heat Blast Gauss/Rico it's more so on Rook (78 currently) and wildfire. I'd assume it would sense to have Rook be deployed at around 12 seconds (so it spawns), then going WF at 10 -> Hyper Charge, Heat Blast + Gau/Rico combos -> Heated Clean Shot -> Rook Overdrive -> Drill?

Back in 4.0 I felt like Overdrive made way more sense with weaving but maybe I'm just not getting the full picture of it until Queen becomes a thing.