Yes, we always recommend that investors should invest consistently over the long term using DCA without worrying too much about market fluctuations. Rather than investing aggressively in large amounts at once, it is better to invest a certain amount regularly through DCA continuously, because this will allow you to grow your portfolio at a long-term average price, which will greatly increase your profit.
And by keeping a reserve fund ready, when the price is a DIP during market volatility, you should buy more Bitcoin in that DIP. Strategically buying a large amount with the reserve fund during DIP/fall, it will bring better success later.
To do so, one must understand why Bitcoin will stand strong no matter what.
I agree with your points, because buying in lumps is possible, yet there are other ways to do things that would appreciate long-term hodling and taking one step at a time, slowly reaching your goal.
It's great to see those who are already long on the market working with the same strat that not only secures your investment' stability, but makes it even more valuable as time goes on.