Inspecting under the WP regs I think it would have been hard to warrant AFD in most hotels. You could say that to protect employees all you need is MCP's, as cleaners will be spread out through the floors, and would be capable of raising the alarm manually to protect each other.
Maybe go to single staircase hotels and you would maybe have a good chance of warranting AFD in a workplace on a risk based approach under the WP regs.
Now, as someone mentioned, the whole "relevant persons" makes it a clear cut case. Don't forget that some hotels got a certificate before AFD existed and, due to limitations set by the FP act, we COULDN'T ask them for an upgrade unless material alterations had taken place. (AS twsutton said)
Maybe some IO's were confused and missed chances to get AFD in some hotels, thinking too much about the FP act and not concentrating on the WP regs? If this is the case then I have to almost agree with "the others" regarding "why change now if they didn't require it then?".
The main answer I think is in the legislation. "Relevant persons". I know alot of it is almost cut and paste from previous legislation, but regardless of that it is NEW legislation. No point making reference to what went on before. Times have changed. (Hopefully.)