Considering that they're probably smart enough to read the writing on the wall this time, they're likely going to be correct. These bull runs have happened, what, three times historically? They should be wise enough to consider the fact that this is going to happen again. This is the exact same trend we have seen every other time we hit an ATH, and the timing for it is basically just right. To say that there isn't merit in considering the imminence of a massive bull run is ridiculous. A bear can only talk about hibernation for so long, eventually, the investors will come charging forward and it'll be an indisputable bull market. All they have to master from here is determining when the bull run is going to end and how to put in the best shorts that they can manage. Which, knowing Bitcoin's volatility, won't be something difficult to decide once we hit the next ATH.
Worst case this is a minor hill with another bear market coming after it, but I'm pretty sure investors are too aggressive for that right now.