Almost no manager will sign-off spending time on building stuff in-house if its available "for free".
This is also in no way a new thing. How much code was written in notepad++ in the '00ies? Did anyone bother to check if the plugins did sth. malicious? We also used some weird closed-src "addon" for the Nullsoft installer to get a product out of the door, dont remember what the problem was exactly....
Some big corps resort to a different tactics: they ONLY allow in-house tools. IDEs, communication tools, everything you need on a daily basis, they make in-house tools for that. It costs a lot of money but they care about security.
Aaand this is why AI is taking our jobs and we all rightfully deserve to be laid off. This utter lack of risk awareness and care for quality is what created the need for autonomous agents to dig through and build upon man-made slop.
Honestly, I find it rich that we’re the ones who think that AI is the one that’s producing slop. Give any agent clear harnesses and it’ll produce better code than a human would close to 100% of the time. That’s still as indeterministic as the way you used “most of the time”, but the deviation tends to be smaller and the quality and rigor is much higher.
Like Wordpress plugins previously that'll work for now but we're now on the trajectory of relearning that same lesson, because people are automating discovery and exploitation of these extensions and plugins and whatnot around text editors and MCP and so on.
Though I suspect we'll first see a torrent of exploitation similar to what was done to Wordpress instances, and then a change of behaviour, because as you allude to, the people with influence didn't learn from previous experiences with similar technologies.