More raid-like mechanics

If you somehow don't know what I'm talking about, lets look at the average raid. You drink an ominous bottle, enter a village, a raid starts, kill illagers for a couple waves, and get rewards. So why don't we get more stuff like that? For example, if you kill enough piglin brutes in a bastion, then they could come invade the overworld through the nearest ruined portal. (or just stuff like that)

-FlyLegoBanana