Sideways trends have proved that technical analysis doesn't always mean anything.
About a month ago we hit 30k, and TA is constantly predicting a breakout up or down, usually up, but instead the market crabs sideways, something only a few people predicted, and most of them didn't use technical analysis to figure it out.
TA is such a pointless endeavor in a market that is so controlled and volatile by the current BTC price action, especially if it is dependent upon the behavior of whales.
My guess is that there is always a money to be made in the very short term looking at these TA charts, however it is always a bit unsure as well because crypto is very volatile. So what happened is that in the stock world people made a lot of money based on the stock charts, you look at revenue, debt, profit, cash flow etc etc etc and you make a good amount of profit based on that, however at the end of the day there are few crashes that happen there as well, not that frequently but it did happen.
So people who came from that world wanted to use the same thing on crypto, which does work if you are doing daily trading for example, if you want to buy now and sell an hour later that is not going to be impacted by the crypto nature, however in the long term you could always have some company declare bitcoin acceptance and bitcoin skyrockets or Elon tweets and it crashes, those are not in TA at all, if you can avoid those, TA could work very well in short term.