I don't know, maybe it's because I've known both concepts for a long time, but what the OP says seems so logical to me that I find it almost banal. It's like if you want to fry something, you have to add the oil or butter first, not after. It's true that when you start investing, if you don't have an emergency fund built up and good budgeting experience, you may be tempted to dip into your emergency fund to invest more from the outset. But over time, you learn that slow and steady wins the race.
Exactly, slow and steady is more important than trying to rush your investment to have big portfolio and this is what some folks do, they think going beyond there discretionary to invest in Bitcoin is the best way to go about it but it is absolutely the wrong way because our discretionary has to be used wisely and again some do this because they feel this investment is a competition, some are investing just to have more Bitcoin than there friends and..., not knowing or considering the fact that people has different source of income and people also have different capacity, what I can afford to invest in Bitcoin may not be what the next person can afford to invest because of our financial strength but some folks always don't consider this and soon they will be running and jumping, panicking because of ignorant.