main studs vs bolts

Also when you're assembling, it's a LOT easier to check stud threads for damage/dirt/etc than it is to clean out the inside of a block hole.

You get foreign material in there, that gives a skewed torque reading and your bolt isn't "home". You wouldn't know unless you were checking for stretch anyway.

But like you say, I agree that studs are overkill for most people.
Main bolts don't tend to blow out in my experience, bearings do.

I'm sure 10,000 will reply now and say, no, it happened to them!
Even ARP makes a blem or two, I'm sure.