It's not inhospitable, it's not having to live your life as though you are always on show.
To me, my home is my sanctuary, and I can let my hair down there. If I want to stay in my pyjamas all morning and watch Eastenders, I can. If I want to leave the dishes until later, I can do that, too. It doesn't mean that I want everyone to see me doing it, though.
A ten minute warning would at least allow me to put some clothes on, pull a brush through my hair, switch off the TV and shut the kitchen door. That way, I could be hospitable when my visitor arrived, and smile when offering coffee rather than both of us feeling mortified at my being caught out.