The comparison to Fittler is madness. Fittler was a prodigy player- everyone knew him coming through the grades. He was destined to be great from an extremely early age.
Until this season, Galvin wasn't even supposed to be ahead of Latu Fainu.
I've said it before- Galvin reminds me of Wade Graham. Started very young (Graham debuted at 17 playing 5/8) & had a long career, was a bit bigger than your traditional half-5/8 & was eventually moved to lock, then to the second row & had a long, established career being a ball player & organiser anywhere on the field.
Galvin's speed has been talked about a lot, his body frame as well. It's not algebra- you can see he is tall & can carry additional weight. He's also not lightning across the ground. While it doesn't preclude him from success in the halves, it does add weight to the argument that he might be better suited, AT ANY CLUB, moving into the back row.