A lot of vehicles don't have a recovery point. Some have shipping tie downs that look like a recovery point, but aren't all that strong.
So if they haven't got, or installed, a recovery hook then you risk damaging their vehicle or yours. It annoys me but I still helped those that needed it even when it was a dodgy setup that I was not keen on using. I always seemed to use my straps because at least I knew the shackles etc were good.
But those days are over for me because I haven't had a 4wd for the last 5 years. I really want one though!