That's true, nobody that knows crypto would think that it's simple, it's one of the hardest things ever and only a fool would think that it would make sense. I believe that it's not going to be easy at all and we shouldn't really be worried about it neither. Life is not that simple and it's going to cause a lot of people to make mistakes because of it.
People may not believe the same things you believe in, but that doesn't mean that we should respect every single opinion, like this one that doesn't make sense. Shorting is very hard and if you do a x10 shorting that means you can't be wrong too much, if it goes even just a bit higher, then you are going to lose all your money. I hope that it gets easier but shorting will never be easy.
The only other scenario I can think about which could explain why someone may believe that trading in this way is easy is if they got lucky on their first trades and they made some money, and instead of assuming themselves to be incredibly lucky to obtain those profits they somehow think this was the product of their amazing skills.
But we know better, training is hard, short selling is harder, and short selling a market which has the tendency to experiment long bull markets is even harder.