If this is SA, then it seems like lying about yourself online for the purposes of getting a date would also be SA, which makes most of what happens on Tinder and Grindr count. I feel like that waters down the term more than we should want. If a person tells someone on Tinder that they're 6' tall when they're really 5'11", or says they're employed when they're not, does it count as SA if they later meet up and have sex? Again, I think that waters down the term to the point that it minimizes actual SA.
There are some lies that I do think count--telling someone you've had a vasectomy when you haven't, or that you've been tested for STIs when you haven't do seem like they might constitute SA--but most are just skeezy behavior. Not everything shady that eventually involves sex is SA. This kind of behavior is really just lying about yourself online on an industrial scale, but people still need to meet in person to have sex. Unless we're willing to call all those other kinds of lies SA also, I don't think this would be.