My STP is 12.2 with a heavy-ass wheelset, 9 speed, chainguide and front/rear brakes.
It could easily be in the elevens without sacrificing strength, heck it could make the tens if I made it SS, one brake and suchlike.
At the end of the day, if you choose components that are as heavy as they need to be, and as strong as they need to be, you end up with a light bike. It can take some careful evaluation to get the right spec.
And what, Ti compromises strength? Ti is flexy? Are you even remotely serious?
A steel frame at the same weight as the Ti one will be certainly just as flexy and won't be as strong. Size for size steel is stronger but ti is so much lighter that the material can be upped to more than compensate, but still remaining lighter.