I can't say that this is definitely true. There are strategies that do not change over time, for example, buy low - sell high, all you need with this strategy is patience and the right choice of entry points.
However, the market is developing, and in the short term it can act in an extremely unpredictable manner, which opens up additional opportunities.
It was a genuine strategy, we have nothing to change with that.
What we are talking about is different things in which aside from having to buy low and sell high, we also have other strategies accompanied to it. As this sometimes becomes obsolete due to market change from time to time, it is a need for us to adopt the changes otherwise, it comes ineffective.
But above all, the market analysis seems to have a vital role in trading.