If this doesn't meet the exact definition of being stood up, then it's unfortunate that OP passed on other plans with out firmer plans in place with this guy.
I would've assumed, though, that he couldn't call me and would have tried to send a message that I waited for him and hope he's okay. Then I'd mentally put him on the back burner while I pondered other options (people). The reason I say that is I generally don't assume bad motive about someone until they've actually shown me that they have bad motives.
I may have posted this on E-hell before, but 20 years ago when I was bartending, one of my coworkers asked me and another coworker if she did something wrong. She explained that she was stood up by this guy, so she got mad, broke into his house and put cat poop on his bed. Later, she found out that he was in a car accident and still in the hospital.
She concluded, "Now I feel kinda bad. Did I do something wrong?"
I was 20 and all goggle-eyed, when my 37 yo coworker said, "No, I think you're fine. How could you have known he was in an accident?"
Stunned at both of them, I went off on them about how terrible that was and basically how lucky the guy would be to know what type of person she was.
They both looked at me like I was speaking a foreign language and said something that sounded like, "Interesting."
Now, is it more likely that he flaked on OP as opposed to it not being possible to contact OP? Probably. But I still think it's better to assume the best about people.
Of course, in our family and milieu of friends and associates we take a strict view of dating. This means that a man or woman (in our religion) already has references as to someone's character before dating them. So there really is no 'blind dating'. So my opinion is just guessing on what I'd do/feel in the given situation.