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Yes in terms of investment lump sum investment can be very useful for an investor if he has excess money supply but he has to choose the right time to do it like dips price trend. If you don't get suitable bearish then you can start depositing bitcoins with DCA method and if you get low price of bitcoins during deposits regularly then lump sum buy may be more useful for you to get more holding in less time.
The method of buying in large quantities at once requires the right time such as market conditions in a Bearish phase and a large amount of money. For me, this method is very boring because it takes a long time to wait for the market to correct. However, DCA offers a solution without causing problems, investors can invest at any time with any amount without having to be tied to market value. This method allows investors to accumulate Bitcoin at an average price over the long term, while also avoiding the stress of trying to predict volatile market price movements.
It seems you are mistaking the buy Dip to lump sum because in lump summing investors don't necessarily need to wait for bearish before they buy. Lump summing simply means buying in a large quantity regardless of the market condition but it will be an advantage if an investor lump sum during the Dip and people who see this method as boring are investors who don't have enough funds to..., just like me I don't like the lump summing because I can't afford it that's means it is boring to me. But the reason why I like it is that a figure one will buy a day can take some investors who is using the DCA method a month if not year(s) to accumulate.