It's not the law that is the issue, more the service industry that has twisted it to their own ends.
Of most portable appliances, very few actually require combined inspection & test annually (can be 2-5 years) and a lot of stuff never needs it, just visual inspections, it's all in the table in the HSE guidance.
Yet ask a PAT tester and every single thing that has a plug must be tested annually.
Also having seen a few in action, it's a case of plug it in the cheap pass/fail tester, press the button, slap on a sticker, move on to the next......whereas in my experience (as a 'competent person' to carry out PAT testing myself) I only ever failed one item on the machine, most stuff failed in the tactile, visual and plug disassembly stages and never reached the machine. I've seen stuff 'passed' with clear visual fail damage as this gets missed to save time.