The worst integration problems tend to be conceptual mismatches between the systems, where--even with the same names--they have different definitions and ideas of how things work.
That's a category of problem I wouldn't expect a text-based system to detect very well.. Though it might disguise the problem with a solution that seems to work until it blows up one day or people discover a lot of hard-to-fix data.
Well that's another use I have for LLMs: asking questions about these informational or architectural impedance mismatches. LLMs get it wrong sometimes, but with proper guidance (channel your inner Karl Popper), they can be quite helpful. But this doesn't really speed me up that much, though it makes me more confident that my deliverable is correct.
This is fundamental. Well, not really - a strategy SV tried to use is absolute market dominance to the point where you have to integrate with them. But in spaces where true interoperability is required, it's just philosophically hard. People don't mean the same thing.
