This is just another description for Dollar-Cost Averaging, and what you shared is right. It's just that you changed the term.

While DCA is a very good approach when it comes to investing since you don't need to have a huge amount of money to do it, it isn't a magic tool where you will make profit if you do it. It will still have some factors in it like how long are you planning to hold it, or how patient you are in holding it because if you'll be using the DCA strategy, it sometimes takes months or even years to see the profits of your investment.

Also adding to the Bitcoin being finite, also add the fact that around 3-4 Million Bitcoins (correct me with the number) are lost forever already because of lost seed phrases and private keys, so that decreases the total number of circulating supply. As for the time beats timing, that has been proven already, and even though you start with a huge capital but on the later stage of your life, a person who started way earlier will still have money after a few years or decades. This is the reason why I started early in investing, and it's all worth it.

DCA is the strategy that I can recommend for newbies out there instead of investing your money at once. Both approach have pros and cons, but DCA is much safer at least for me.