It seems there is a larger contingent of "Pistolier's" out there that think 90% of production pistols should get a trigger job.
I had the same "advice" about my M+P. Don't get me wrong, some pistols really need "a job",overtravel, creep, reset, pull lbs. etc,...can be great for some and a "turd"
, for others. The competition shooters seem to like a little love on a trigger, some are fine without.
I had one of my 1911's done, and it is WAY mo' betta!. But I was "tweaking it anyway", so what the heck. But the rest are left the heck alone.
Shot many a "G" gun, all stock out of the box, and they are what they are, and fine for me. IMHO, I don't shoot competitively. But do shoot every week.
If one wants to "tweak" a trigger, that's a personal choice, and depends on the pistol. When I buy a pistol NIB, I test fire it with live ammo, or at least ask to dry fire it with snap caps. Most dealers around here don't mind, and I don't buy a pistol with the mindset "Oh, I need a trigger job".