I strongly agree. I think if you read the post it is definitely evident that although this was an unpleasant experience, the author is blowing things out of proportion. I know that may seem insensitive, but in the context of your post, I think it's important to be explicit about this point.
The woman was given a rather invasive through-clothing security pat down. Of course this can be discomforting and invasive, especially if you're caught off guard. And of course such searches are extremely hard to justify and should never be codified into policy. Yes, it can be traumatic and violating, but this is nothing like a rape or "real" sexual assault.
A few months ago a jogger around here was hit with a cinder block, dragged off the trail, raped several times, beat with said block more, and left for dead in the woods. _That_ is real sexual assault. Such rapes are not really uncommon, though many less violent rapes also occur, and they are also highly traumatic and serious; much more serious than a TSA worker going about their mundane duties, which they are probably not very happy to be forced to perform either.
The activity described in the post is unpleasant touching, and I agree that we shouldn't allow it, but these events are not even in the same league as "real" sexual abuse or rape. I support your efforts to reclaim the term as a service to those many who've suffered serious abuses whole-heartedly.