It's entirely possible that you're talking about a completely different usage of these terms, but they certainly seem to have legitimate usage. Telling, say, a PTSD-sufferer to "just update already" would not be productive.

I agree that when someone is in the thick of something like that, there's no point in telling them to just get over it. In that context it would be the sort of useless and obnoxious advice that consists of telling someone with a problem that they just need to solve the problem.

However, it is possible to get over things effectively, and not wallow in jam-tomorrow "working through". The right time to acquire that skill, of neither ignoring the feelings nor obsessing over them, but instead attending to what needs to be done, is when there is no overwhelming trauma in progress.