I think that you're correct in that Rails and IDEs offer significant productivity benefits but aren't/weren't widely adopted.
But AI seems to be different in that it claims to replace programmers, instead of augment them. Yes, higher productivity means you don't have to hire as many people, but with AI tools there's specifically the promise that you can get rid of a bunch of your developers, and regardless of truth, clueless execs buy the marketing.
Stupid MBAs at big companies see this as a cost reduction - so regardless of the utility of AI code-generation tools (which may be high!), or of the fact that there are many other ways to get productivity benefits, they'll still try to deploy these systems everywhere.
That's my projection, at least. I'd love to be wrong.
But AI seems to be different in that it claims to replace programmers, instead of augment them. Yes, higher productivity means you don't have to hire as many people, but with AI tools there's specifically the promise that you can get rid of a bunch of your developers, and regardless of truth, clueless execs buy the marketing.
Stupid MBAs at big companies see this as a cost reduction - so regardless of the utility of AI code-generation tools (which may be high!), or of the fact that there are many other ways to get productivity benefits, they'll still try to deploy these systems everywhere.
That's my projection, at least. I'd love to be wrong.