It's a bloody damn shame, that's what it is. I like several of the Omnis (especially the Avatar and the look of the Owens) and I'd really like some more.
But, if they all used Omnis all of a sudden, you wouldn't have enough material for new TROs.
Not really.
You see, the Inner Sphere made its first Generation Omni's, some(the Raptor, the Black Hawk KU, the Avatar, the Sunder) were pretty good. However, they also showed the uncertainty of the IS using the technologies. Fixed systems because the IS wanted
something it "knew would work"(the Avatar's mediums) or because they did not understand the idea of not locking something
into a single role(the Owens EW equipment).
From the lessons learned in these, we got the second generation, one per House(except Kurita), Omnis. These improved upon,
and, really, were the first truly mature OmniMechs. Each one demonstrated something of an improvement. The Perseus showed
that one could make a non-omni design Omni, in fact, while the Men Shen was a much better recon platform then the Owens, and
a better combat platform then the Strider. The Hauptman was the the Sunder-Killer for the title of the "best Inner Sphere Assault
Omni", and the Templar proved a well laid out machine for using all the new Davion toys.
And that is where the Inner Sphere stopped. The Word of Blake developed their Celestials, and used things that the rest of the Inner
Sphere hadn't, because it had not been developed yet. However, even with the Celestials using things like light fusion engines, advanced gyros, and even TSM, they failed to fully push the envelope. Why not a Stealth Armoured OmniMech? How about something using Heavy Ferro Fibrous? What about an advanced tech light or heavy OmniMech? What about potential upgrades to the original
1st Generation Omnis? Why did the IS STOP developing this technology for 'mechs, but focus it for vehicles? The Inner Sphere, now, has more OmniVehicles then the Clans....but, yet, each house(except Kurita) has only 1 OmniMech to call its own. Why has Kurita not
developed a new OmniMech, in fact?