Thing is the Jade hawk's a bit of a turkey, sure it looks amazing but weapons wise...its useless outside all but the shortest ranges.
The same could be said of the Hunchback a century or two earlier. Difference is, the Hawk is fast enough to close the range to use its fun treats... and, much like the Hunchback could advance under cover from long-range units like Trebuchets, the Jade Hawk can advance under cover from the long-range muscle of Gyrfalcons and Shrikes.
Also bear in mind that combat in this era is much heavier on combined-arms than before. That means infantry. That means urban environments, because that's where infantry work best... And a Clan-model Jade Hawk loose in a city is a bull in a china shop. Here the old Hunchback comparison falls apart a bit- a Hunchback loose in town becomes a nasty customer, stomping around a corner and delivering massive shells into a target... if it can get into position. A Hawk? It's bouncing all over purgatory, lasers and missiles and psychotic thrashing attacks... there's nowhere safe. It WILL catch its prey, and it WILL make it miserable- and if it gets into rough spot it simply hops away to safety and prepares its next attack.
Even in an open field fight, it's got uses, much like the Hunchie. Nothing motivates people to stay away from your Archers and Trebuchets like a Hunchback on guard duty- good news, I'm inside the LRM minimum range. Bad news, AC-20s hurt. Same here- even if I find a way to get in among the Gyrfalcons and such (and that's no easy task with the Gyrfalcon's mobility!), now the Jade Hawk on guard duty gets to go all kung-fu on its enemy.
This is an EXTREMELY dangerous design- it just needs to be used properly. This isn't a do-everything design the way some designs are, it isn't able to engage at any range with tools for every job the way a Mad Cat can. But in its roles, there's genuinely few designs that can compare to it- or survive long against one.