It's because they're a bunch of noobs who entered bitcoin in 2017 and have only known a massive bull run.
The people who were around in 2013 and then stuck it out through a brutal 3 year bear market that saw bitcoin lose 90% of it's value before recovering and then surging, know that the current situation is pretty benign
I gat some of your point, people who just enter 2017 and buy Bitcoin because they believe it will keep on increasing but now they never expect it to drop like this, now they are complaining about it, but it's their fault not knowing what happen in the past years...