We might get into another slump of efficiency as an outcome of this, again stopping us from making the most of the hardware and computational resources we have, due to prompts being too unspecific. Did not specify the OS your code will run on? Well, we better use this general cross OS available library here, instead of the optimized one for the actual OS the thing will run on.

The same mentality, that causes today's "everything must be a web app", will caused terrible inefficiency in AI generated (and human prompted for) code. In the end our systems might not be more performant than anything we already have, because there are dozens of useless abstraction layers inserted.

At the same time other people might complain, that the AI does not generate code, that can be run everywhere. That they have to be too specific. People might work on that, producing code generators which output even more overheady code.

At least some of that overhead will slip through the cracks into production systems, as companies wont be willing to invest into proof-reading software engineers and long prompt-generate-review-feedback cycles.