Regarding the ride's airtime moments: I don't think people are paying close enough attention to the ride's profiling and/or don't properly understand ride dynamics. RMC's wave turns, including Twisted Cyclone's wall rider element, have a very distinct W profiling from above while following a vertical parabolic trajectory. Relative to the train and riders at 90*, it translates to 0g in a lateral direction, but actually throwing you out of your seat vertically. Also, the turnaround is not, by any stretch of the imagination, a reverse treble clef. B&M actually took a page out of RMC's book with Fury's, as the top 20ish percent of the element follow a perfect parabolic trajectory after the ride completes turning around, all while the train is oriented sideways. Orion's turnaround does not showcase any of that - the element rises, rolls into its turn, and dives. That's it. We might experience some floaties as the train crests and begins to roll, but that'll be about it.
Regarding what's a giga: to be honest, I literally haven't heard height classes excluding the drop until a few weeks ago, and I think it's just to get KI fanboys' panties all in a wad. To me, if there's an element over whatever height, it counts, and thus Apollo's Chariot is a hyper coaster, Goliath at SFOG is a hyper coaster, and Orion is a giga coaster. And I've heard people throw all sorts of arguments at it, from point of reference to intent to what B&M calls their product line (from that standpoint, ALL of their airtime focused coasters are hyper coasters, including Fury, Leviathan, Goliath (La Ronde), and Hollywood Dream). And although I count Red Force and Tower of Terror II, I completely understand why people don't and thus I have them in an offshoot as non-traditional coasters. But yeah...enjoy your goddamn 300+ foot tall coasters, no matter how they're sliced