There are limits to how bad the skiing can be before it's just wrong.
When I see some one skiing with movements that are hard to make, hard on their body, not making good use of the ski's design, causing their bindings to release if bindings are set low, risking or even damaging their knees, tiring themselves out unnecessarily, people whos prefereed movements make it hard for them to advance, I think their skiing is "not good". I think there is something wrong with their skiing. It's not "all good". there is nothing wrong with good enough skiing, good enough is ok, but sometimes it's not even good enough.
Some people are perfectly happy with their not good skiing. That doesn't make their skiing good. I will concede, however, that it is their right to continue skiing the "wrong" way.
In all reality, I don't think anyone who thinks their skiing is bad, is perfectly happy skiing that way.