I think it's not a significant problem. I'm sure with DCA's investment model and the saying we're going to lose money/rugpull will change. Everyone tries to do their best in investing and sometimes the implementation is different. Some say changing habits is difficult, especially changing investment patterns which in the past we often saw people putting in/buying everything at once, everything was considered appropriate and not wrong, but if we lower the tension just a little, in my opinion it would be wiser to arrange it, do it in such a way and that not that difficult.
That's right, as you said, there is always the possibility of a market correction and sometimes it is beyond our understanding and just look today at how it can suddenly go down even though if we look at the graphic data it shows it will go up. So, what is needed in this situation is fresh funds to be able to absorb any downturn. Apart from research and observation before buying, the luck factor is not needed at all here because DCA is a pattern of buying every drop if we have savings.
Personally I wouldn't pick the option of changing Bitcoin strategy as difficult as some people might oppose. One thing for sure, change is constant and we humans are built differently in such a way we are able to quickly adapt to new things. So it is left for the person to take the bold step in changing such strategy.
It is still not a bad idea buying wholesomely from the DIP but how often or long do we propose the DIP to happen. Very important at every stage to know which strategy to apply, at some DIP you may find it very interesting to accumulate more than normal DCA amount that those not necessarily mean altering your DCA strategy.