Most people want to get the benefits of the market without any effort, so what you are proposing makes sense and it will help people to make more money in the market if they learned from their own mistakes but that is something that is not very common, people prefer to keep doing the same thing over and over again and see if they can get different results and as you may guess that doesn't happen.
All that is required is even patience, but of course, there is no way anyone can even have patience without realizing what they are investing in, the potentials or why they should be looking at the long term in the first place, and all these things will most definitely affect their judgment as well as the way they basically think.
Obviously, most people who are pained right now are those who joined FOMO and of course, that was because they never understood the market and they never took their time to, but while some have learned from their mistakes and trying to make some adjustments, some will be whining and feeling painful for no reason at all, as if that would help them in anyway.