You will rarely see anyone thrown at for pimping a homer, or taking an extra base in blowout anymore because it's a pointless exercise that generally only impacts the pitcherEarl Weaver famously hated throwing at opposing hitters. His theory was that his players were better, so if a beanball war led to injuries or ejections, it would probably hurt the O's more than the other team.
Just about everyone on every team celebrates a base hit, much less a home run. ( See the Orioles with the sprinklers.) Further, I don't believe anyone should or should have ever been thrown at for something as trivial as stealing a base with an 8 run lead. People should play hard all the time.
You'll only see retaliation in this era if the opposition thinks that someone was trying to hurt someone intentionally. ( Ex. Machado sliding into Pedroia) Instead of plunking Soto, strike him out and stare at him while he sulks to the bench.