I dont really agree with your wording of correction, its ok to say btc has crashed since ath, a 70% drop is just that, a crash.
You know I hate to agree with JJG (well, not really...), but I'm gonna. Of
course it is a correction. We went from $3000 to $20000 in four months. $6000 to $20000 in five weeks. The price just got overheated through FOMO. This is a
classic correction.
If we had set stable at $20000 for months, you'd be justified in calling it a crash. But we didn't. Not a crash. A correction.