Even though you are very good at doing TA and have deep knowledge about trading still was hard to timing the market price due to its volatility. That is why some holders wanted to stay as holders rather than use their funds to trade because they thought it was less risky and not stressful. Of course, if you are not really confident to do trading why you should do it in fact, we can still earn a profit from just holding and selling at high. It was not how we miximized our funds while waiting for the bull season but we chose the way that we thought it never gives us losses which holding does.
It is logical that everyone will act according to their beliefs, how they see the market. I chose long-term investing for myself because I know that for me it is the best possible option. If there is a trader who can earn more over the long term than Bitcoin can grow, then of course he will trade and eventually earn more than me, but this does not mean that this can change anything for me, because I am not such a good trader and often suffer losses because I am just learning. But if you look at the high-status users of this forum, almoust everyone says that hold btc defeats any other attempts to make a profit, so why try to invent something new?
And this is an important step on the development of a trader, trying to obtain the highest profits is in fact the goal of every single market participant, however if we take this to the extreme then this could mean investing in shitcoins hoping for a coin to skyrocket, which is precisely what many people do by the way.
However since the chances of success are so low many people are against doing this, and a similar logic applies to trading in general, even if a good trader can make more money than a holder, what good does that information does for me if I am not a good trader anyway? As in that case it is preferable I become a holder instead since I can actually make some money in this way.