> it's really all about what your industry is optimizing for, and what would cost you more money

Sure, those were not critical systems, they could be patched with minimal hasse to clients. However you can't really predict catastrophe costs. It could range from minor usability issues to hard to trace calculation errors that could jeopardise the whole production operation. If the company doesn't work work with prototypes it should invest heavily in test coverage, integration test and delivery pipelines