Oh yes. Verification needs to be done. Some statistics and validation is absolutely required. Also most customers don’t want their private data uploaded anywhere, so ai gets only test data and writes the script to transform it. As long as it is just XML, CSV or similar it’s pretty reliable. Handwritten notes and bad scans however…

A friend of mine runs a business similar to this for systems migration, which is a fairly tough and tedious "short-put" job (you have to know both old and new system fairly well, and if all goes well, you get the same job done on the new system, while if something goes wrong, you're in a world of pain...):

The AI analyses sample data from old and new system, and then builds a prototype deterministic mapping pipeline. The experts can then inspect said pipeline and with their domain expertise catch edge cases/exceptions/uncovered cases, fix them and improve things, and then you use the vetted deterministic pipeline for migration. Yet, the initial AI draft saves enormous time.