If you are asking personally for me. Yes. 1200 of my 1500 TT is on B737.
So after flying at Mesa for two years I will have almost 3000 Hours Jet time.
so not a big deal. and by the way... if you fly to Turkey or to Asia you will face captains that they do not even know how to read an airplane manual and calculate an approach speed when they have a flaps failure..
FCOM as we used to call them there.. You will find captains that don't even know how to fly a 737 visual because guess what ??? nobody flies visual approaches there.. you will find captains during the simulator checks that will ask for vectors around from the atc to solve a fire problem with inextinguishable fire.. and not trying to land as soon as possible. you will find many idiots over there flying the good machines and if I will continue writing I can tell you many stories for people flying over there big jets that for sure are much worse than our regional Captains here.. and guess what ??? all of those arrogants would say to you... "I needed thousand of hours to become a captain" I am pretty sure that most of the CFIs who got their ratings here in America will be much better Captains on a 900 when they reach their 3000TT than those people...