[edited out]
This advice is not worth it, it has a focus/vision but lacks investment dynamism and safety, what is the ultimate goal of Bitcoin price moving up in multiples did not happen, what will be the fate of the investment? So you are wrong to have said we should disregard the price of Bitcoin, if we do that, what type of investor are we? No matter what you think of Bitcoin, you should always have your factor of safety, your investment safety should be your number one goal, and this is why you need the right risk management as you invest.
Tell me, where is the risk management if you do not consider the price of Bitcoin to plan the investment rightly? The DCA investment approach is certainly good as it would help you to average your earnings and risks, but it will be painful at the end of the day if you hardly gain anything from your investment strategy due to the inability of the asset to perform. This is why the price is key. You should also learn the market pattern to assist in speculation and know the right time for the investment (DCA or not).
You seem to either not understand what is DCA or you are purposefully convoluting DCA with ideas of trading.