Crypto investment and other investment is not the same. Crypto investment is in more than one way, either you are hodling or you are trading it.
Most crypto enthusiasts forget that you can do exactly the same in a lot of markets. Buy valuable enterprise shares and they are very likely to be worth more in a couple years.
To respond to OP his approach makes sense. Trackers used to beat traders, Id see why it would be different with cryptos.