Yep. A person buying in lumps or DCAing can hold for long, they two are capable of the same actions and the results would differ, however - they would probably still be positive.
It's about understanding Bitcoin and the actions that spring from it.
Although it can be different in terms of the results of the profits from the two somewhat different actions, I think for people who buy DCA they will also feel greater benefits even though they have to wait for more time due to the slow purchase. While for people who are able to buy all at once in large quantities, of course these people must be categorized differently because they have the money to run it immediately and can even make a very good effect on the market to increase the price of Bitcoin.
But in general, both types of actions can still be considered good if we compare them with people who are hesitant to buy but like to comment on Bitcoin. Because I still see people who like to comment on Bitcoin in my environment but these people have not bought Bitcoin at all and still often judge other people's actions as wrong, even though other people buy immediately without giving more comments that are not useful for themselves.