I agree that launched coasters can do whatever and Hagrid's is a good example of this, but a lot of bigger launched coasters do tend to do the same sorts of things.
And hyper coasters can do whatever too if you're willing to talk with a manufacturer other than B&M.
It's not about whether RMC could theoretically build a family coaster, it's that RMC's are traditionally liked because of their intensity which contradicts with the idea of a family coaster.
It's interesting because HRRR was supposed to be visually imposing/extreme but without inversions . . . except it doesn't have good airtime or a good ride experience in general. And if the only requirements are "on the extreme side but lack inversions plus a ton of air time" then they could just as easily be satisfied by a 100ft tall RMC or GCI or Intamin (or anyone else really).
In general I try not to be too prescriptive about ride types or manufacturers, but I feel like the gaps in Universal's coaster lineup are:
- a coaster that is all about airtime
- a coaster that is "unique" such as spinning, flying, etc.
- a true (low height requirement) family coaster with decent theming (this might be satisfied by DK or the HTTYD coaster)
- a good big/outdoor coaster at each USF and EU (obviously EU will be covered by the hub coaster)
I guess my argument is basically that VelociCoaster already checked off the "fast and twisty launch coaster" box so I'd rather see them going for one of the other gaps with the EU hub coaster.