Did they quote for a new consumer unit?
this looks Lazy, guy turns up has a look around.
sees no rcd so therefore decides it is going to be marked unsatisfactory anyway.
therefore why bother to go to all the trouble of testing stuff.
pulls a couple of cables from consumer unit, and measures resistance because the 2 circuits in question are easy, decides the rest is not worth his time.
about as much professionalism and attention to detail as a Friday night Donner Kebab.
and what is an 80% visual inspection of a consumer unit? I had a quick look but couldn't be arsed to look at it in any detail!!?