Adobe deletes Bluesky posts after backlash

I just don't get how Adobe didn't get dethroned after being so unpopular for so long. There are so many Photoshop competitors, many of which are quite good, they seem to be ripe for disruption. The last version I used was CS6, which came out more than a decade ago, and even that had more than a good enough feature set.

Blender is slowly taking over 3D, why can't 2D be disrupted similarly?

I'm pretty sure it's because just about every applicable art school has enforced their student's output to be done in adobe's products - meaning that Adobe has a firm grip on the educator's market. As the saying goes, hook them in when they're young and they'll be too lazy and vested to move away from their products for a lifetime.