The fundamentals of an asset are important if you are a positional trader and want to take a very long position in an asset, but if you want to be a trader that only holds his coins for a few hours or days then technical analysis is way more important, the variations on the supply and the demand are way more important the shorter the period you choose to trade, besides even if the fundamentals are important it does not really give you an idea of how big or small the next movement will be so you still need TA in order to figure it out.