I am with this opinion too.
You don't know how hygienic the previous occupants are, if they've had dogs or not, peed the bed, had their period all over it, if they're the type to never wash, if they've peed themselves on the sofa, got drunk and crapped themselves or thrown up on it etc.
A clean space is a clean space no matter what happened on it beforehand.
My dog once had diarrhea on the old wooden floors of a gorgous, every expensive house I'd rented. Absolutely 100% my fault that it happened.
Place was far from grotty. I cleaned it. It's gone. If someone sits on that floor they're at no more risk than if a child/elderly person/drunk or ill person had had diarrhea on it. Accidents happen, and sometimes incidents happen too.
I agree about misleading adverts. I have actually asked about outdoor space (due to dog) and been told yes, absolutely fine, dog friendly etc etc. Failed to mention that the space was shared, therefore I had to walk the dog each morning, could not just let her out for a pee. No huge deal of course but inconvenient and yes, misleading and unclear.