blowing the head gaskets is less likely than the "old" days.
Not to mention ANY higher power SCT tune will turn off the EGR...it's not a total fix but it's better than nothing.
Not really with the 6.0. You can blow heads even in stock form without adding any hp. Second, eletronically shutting off the EGR is really hit or miss. I have seen some programs that turned it off and there were still EGR problems2345
You're essentially telling everyone that they need to do thousands of dollars worth of work before they can even begin to mod their trucks....on that point...you would be wrong.
No, in order to do some mods, you need to do supporting mods in order to handle it. Headstuds are pretty much needing in order to handle even some custom tuning on trucks without bigger turbos and injectors, just relatively stock.
Myself and many others went a long way with mods without head studs or EGR delete long before they were even available.
It's possible...if your tuning is good.
Just because y'all did all that stuff before studs and egr delete doesn't necessary mean that was the correct, easy, and most reliable way to do it. You may not have had a problem(which I doubt, but if you didn't then you got lucky, more people would have had a problem doing that way then without.
The order of mods that you supplied really isn't the best one either. Studs/egr delete should be done before intake. You don't need an intake until you started to do mods that will by themselves(turbo, injectors) bring you well over 500 hp, customing tuning alone won't do that(even though you listed intake around that timeframe).