because most of the Bitcoin holders don't care about stock market charts or anything else. we have our own way of seeing the history of Bitcoin. and we don't need the history of other stocks.
It could be that other stocks follow and take advantage of Bitcoin's movements. So far I haven't seen anyone compared these two different markets to create an investment planning pattern.
we don't need to compared the two, Bitcoin has its own history that we can learn from. and probably so far it still works and is used by most people.
Besides bitcoin does not really move like a stock, it moves like a commodity, and while both markets can be traded with the use of TA and the several indicators we have at our disposal, they are very different in the way they move.
It is also important to remember that there is no point on trying to look into other markets to try to predict what the market of cryptocurrencies may do, if you want to do that you may as well just watch the bitcoin charts and try to figure out this, instead of using such a roundabout method that will most likely not work anyway.