Most of it was already slop. It's had things shoehorned into it by shouty managers decades ago.
Manager: You have to get this done by end of week...
Dev: itll be really shitty and kind of work. Can we clean it up after?
Manager: of course!
Dev: its done, we can ship it. Ill start cleaning it up.
Manager: No, you need to do this other thing by tomorrow!
Ive had some good ones that did honor the agreement when pushed to rush things, but its not common.

