as often as not if I tried to book one of the providers and she was unavailable but the other was the booker would mention that as an option. Sometimes I would ask for a latter appointment and sometimes take the one offered. I have no idea if that was always about balancing work and income or just how things played out. In that past it never caused me much of a problem -- meaning when I did see that "other" girl I was generally happy. Sometimes when I later saw the other girl it confirmed my initial choice was correct (liked the one I chose more than the one available) but never really felt the plan was to direct me to second rate provider over a better one.

 
I did just have that happen this week but I when I didn't show interest it was not problem getting something schedule a day later (even offered the first of the day slot). That said, I would agree that the average level of talent and looks now is not what it was prior to COVID. It might be they have more pressure to keep appointments a bit balanced in order to keep girls touring the area and then just hope to still attract a higher standard of provider as travel conditions improve. (I'm not sure if Siena left and didn't come back because business just is not worth it for her or if being here created too much drama in the apartment with the lonely roommate - or other reasons.)

Been told this by some over the years.  They work when they want and set their own schedules.  If they want the day off, they get it.  If they only want to see two or three men a day, they get it.  The Booker is just that and at least the ladies I've seen have raved about certain K agencies in DC.

so the practice of taking days off between cities isn’t an ideal option.

The “day off” excuse could be taken at face value, or could mean she’s booked for the day.  

I wouldn’t read too much into it as far as your imagined standing with the agencies.