OK you been chatting to a guy /s and you agree to meet for a hook up session at a certain day & time.

On the appointed time you message but get no reply and the guy doesn't turn up. You message a few times checking if he is Ok etc but still no reply.

Later you get a message that he got caught up at work or ran out of petrol . But didn't have time to send a quick ,"cant make it" message.

Is it unreasonable to expect a guy to message that they can't or wont be coming to a hook up for whatever reason? What do you guys think is good manners , good to do? Or is ghosting just become so normal that people don't think they need to message if they wont be there??