That sounds like the real problem was the lack of an employee handbook. They're not strictly required by law, but 30 employees is well above the level where you should really expect to have one in place.

The "just wing it and hope no-one takes the piss" approach is fine if you've only got a handful of employees, but is increasingly risky beyond that - it was probably only a matter of time before that organisation got into a difficult HR situation one way or another.

It's not even going to have been much of a time-saving, since all the legally-mandated bits (eg. equal opportunities, grievance procedures, anti-harassment, modern slavery, and consultation process) will still have been needed at that size, just without a central place to track and manage it all.