probably to do with whatever writers they had on at the time.
I never realised as a kid that cartoons had so many different writers that came and went, and it made sense as to why the Simpsons went down hill.
This also probably seems harder hitting now than back when it aired because like you say, satire became reality.
Don't worry OP, I'm with you. Looks like you really hit a nerve bringing this up.
People can't even overlook language they don't like to take on board what you're asking. Name calling straight away.
You'll never get to have a discussion. Do what Skinner does, pretend to agree.