I've heard as much from a few other people as well. Clan Tech being just flat out better has always irked me, and as a writer it isn't just the tabletop rules that mess with me.
The Clans as they are depicted in canon typically don't live up to their potential in my opinion. Hell, half the reason I like Clan Snow Raven as much as I do is because they're the, "We never forgot that warships plus aerospace superiority is the win button," Clan, but they've got only a handful of specialized units to represent that. Same for Hell's Horses with lore about their ground warfare being combat vehicle centric due to losing infrastructure for mech production.
The only reason I'm not writing my own AU to fuck around in is because I have too many projects already, which is why I'm trying to find which canon era I fit in best. I'm starting to look at the Age of War and Amaris Civil War eras a bit now too, if I can't have a Pulverizer I can always go for a Rampage. Heh, or a Mackie.