Frankly, I think you're being far too demanding. They had no way of knowing whether the power was going to be out for 20 minutes or 20 hours, so there wasn't really much to communicate to you. They gave you a flashlight, and there were staff available if you needed anything. Maybe I'm used to staying at cheap places, but I'm not really sure what more you wanted, and in some cases you admitted that you aren't sure either.