You need to have strong nerves to survive in crypto market. Those who cant see market bleeding wont be able to survive in this market in the long run. We saw a small DIP few days back when Bitcoin went down from 30k to 26k. There were speculations that now Bitcoin will go bearish and wont be able to move up for months but then we saw a recovery yesterday and Bitcoin is now trading at 27.5k.
DCA is no doubt the best and trusted strategy that gives you good profit. Rather then investing your capital at one price with DCA you average your buying price at a wider window. With halving coming next year, it best to accumulate BTC in DCA manner.
The current price recovery could be a trap as well and as soon as people start buying, it might dip again. I was honestly expecting the dip to go deeper but somehow it didn't, and that is the reason why I feel like this isn't really the recovery that the market is looking for and it can take a U-turn at any given time. So, as you said, those doing DCA must not really have any problems but if someone buys all in, they might have to rethink their decision.
Patience is obviously the key to gaining an upper hand in the cryptocurrency market, if you are a panic seller and someone who reacts very quickly in situations where the price drops just a little bit, you will most likely lose more money than you might gain from this market because it requires a lot of patience.