I really don't think training's changed since 95 or whatever, on average. The ones pushing real hard on their working sets, being conscious of their poundages and reps trained somewhat lower volume, such as Dorian. You can't do sets where it's like your life depended on it for high volume. The ones doing more pumping type training without caring about poundage or progression did somewhat higher volume, and again the "intensity" dictates where you feel you've done "enough". Many guys don't really have a extremely rigid routine either, they go until they feel satisfied aka instinctive training. A few are more anal and count sets and reps and don't deviate from the plan. I'm sure you could find lazy trainers back then too just like you can find hard trainers today. I don't think training volume has dropped since mid 90s.
I mean Mentzer supposedly influenced Dorian and then other pros as well and this was like 1990 when Mentzer got back into the sport. Probably pretty much the same on average, though today no one is really advocating the 'one set' ideology.
I think the talent pool is poorer today, apart from bad drugs.
I don't understand why Milos looked so fucking good on it and it fucked up others ?
Milos's abs were kinda thick tho, maybe he just had luck with his natural taper
Probably because he still wasn't trying to be "300lbs" at whatever cost. Always staying lean and not trying to push the weight up. Maybe I'm wrong on Milos' thought process but I doubt he thought to himself, "this off-season I'm going to sit at 300lbs and then diet down".