The Lump buying of Bitcoin emphasis more on investors choice and decision of buying rights away with the available amount regardless of the market conditions whether in dip or not
It will be more convenient to be specific when making use of the word crypto in this thread since it could mean varirans of coins whereas Bitcoin is the priority.
Lump buying is for those who are ready to face the consequences of it.
And if they are able to do so, having a good amount of money for the investment + properly managing the risks, however small they would be.