Is the whole point of this discussion to be able to shoot well with a stock trigger or to be able to shoot well?
If a guy can shoot loonie groups at 10 yards with an aftermarket trigger than who cares about fundamentals and training, Is he not still shooting well?
Yes the trigger may be compensating for improper fundamentals but who cares, the groups are great and he/she is enjoying themselves.
Some people don't want to shoot a 12lb trigger, why? - Because it sucks. I could live on Mr.Noodles three times a day, but I'd rather not.
If you can't shoot a Glock well, you can't shoot well.
Let's say I've taken a bunch of fairly quick cars around a track. Nobody's ever trained me; I don't have the ability to score my times against other people except perhaps informally against other complete amateurs; I have also never used anything but automatic transmissions.
Now I buy myself a G37 with a manual transmission.
After a few trips to the track - and still no training - I post a thread on a car forum that's titled something like "Infinitis suck, I'm selling mine to someone who doesn't care about going fast."
If that forum has some serious drivers, amateur or pro, highly trained and experienced, and they find out I just can't drive stick, do you know what will happen?
Some people who don't know anything about performance driving will say "just be happy with your autos, autos are awesome I love mine lol".
People with experience and skill will tell me to learn to ####ing drive.
I could take the advice of people who don't know what they're talking about, or I could take the advice of experts.
Frankly I don't care which people prefer to do...I'm really only bothered by people who can't tell the difference between good and bad advice, who still feel they should be giving input. And people who take bad advice while telling themselves it's good advice, because it's easier than taking the good advice.
If you don't care about being a good driver, you don't need to learn stick.
Even if you are a good driver, you don't have to drive a standard car.
But if you can't drive stick, you're not really a great driver, so don't pretend you are.