It’s a solid strategy for anyone who wants to build up their crypto stash over time, especially if cash flow is tight.
Yeah, I think the fact is that most people simply don't have a big lump sum amount to invest in Bitcoin, so most people are happy to do DCA.
At the end of the day it is impossible to predict what strategy is best when you ignore things like fees, because it depends on the future price of Bitcoin, which is impossible to predict.
Many people will try to show with past data that DCA or lump sum is better... those analysis are not interesting because you can choose different time periods to make either one of those strategies the best one.