I disagree. It's coder malpractice. There is something to be said for a quick solution that just gets the job done. But each one of the updates described would take more work than just implementing SQLite or similar. Sure, on the outset, do something quick and dirty. By the second or third iteration, any legitimate developer should have switched to a database solution. Creating technical debt for no reason or invalid reasons is just a good way to setup your company for failure.
