It seems that the point is that when the unexpected moves upward come, there may not end up being a correction in order to get back in, and we never really know when those unexpected move upwards are going to be. So it is better if we are "mostly in" during those period in which the BTC price goes up and does not end up correcting back down.
We also don't even know once an UPward move happens (for instance the move up from $16k to $25k in late 2022/early 2023 with ONLY a correction to $19,800, and then our recent move up from $26k/$27k in mid October up to nearly $45k.. and so far hardly any corrections) if it will correct back down or not... and historically, sometimes we have seen 2x, 3x or more in fairly short periods of time... but there could be several 15% to 30% upward moves within the larger upward price move... so the point is mostly to be "in" during those UPpity periods.
I completely agree with your point about the unpredictability of upward moves in the BTC price. It's true that we never really know when these unexpected surges will occur and there is no guarantee that there will be a correction afterward. Therefore it does make sense to be mostly invested during those periods when the BTC price is on the rise and not correcting back down.
You mentioned a couple of recent examples... These instances demonstrate how the BTC price can experience significant gains without necessarily correcting back down immediately. While there is always a degree of uncertainty history has shown that there can be substantial gains in relatively short periods of time.
But in all of these cases if anyone is DCAing so he will never think about it even the price is going up or going down. Like you have mentioned many time that if anyone holding and DCAing the Bitcoin for 4-5 years so this will be profitable after certain period.