Partly. Yeah. But the flipside to that is modern geometry simply isn't as responsive/direct.
one other thing I always notice is how heavy modern trail/derp bikes are in comparison to the older 26" equivalent and a far lighter bike also gives the feeling of a less planted/stable ride but is much less responsive for it.
26" Slope, DJ/4X geometry hasn't really changed in a decade.
But the average mtb rider and what they ride definitely has (around here anyway).
My enduro bike (Capra) is still on 26 and sub 65. it's a M and short AF by todays standards at 420mm reach but it gains stability from the lower BB. But yeah anyone coming from a modern bike finds it unridabru. I still love how easy it is to pop and don't mind that it's not as stable as a bigger bike. I actually rode a L of the same era recently (27.5 and 25mm longer reach) and still prefered mine
It has a 75deg seat angle. so not far off your 76+ criteria. I actually hate modern super steep (78deg or over) seat angles. They put the riders hips too far forward pedalling mellow climbs and make any seated riding on the flat just feel wrong.
I get to swing a leg over modern bikes all the time so know fine what I'd gain from having one. But I also know what I'd be losing out on.
