it is also better to choose DCA strategy, because if someone buys Bitcoin with a lump sum, then later if the price of Bitcoin decreases a little, he may regret it, so DCA strategy should be chosen to buy at an average price.
I think the idea of lump summing is basically dependent on the level of income of the individual or investor. And yes, If you have the income to lump sum I don’t think the idea is wrong to accumulate bitcoin and hodl. The DCA strategy is good, and so is lump sum. The idea is to buy and hodl for a long term goal and sometimes you feel like to buy in bulk and keep rather then buying little by little on weekly or monthly basis due to the fear that if the money gets to remain with you, you might use it for other things that are not really worth it so it’s better you use that money to lump sum and hold. Getting emotional about the market is most common among traders, weather they are DCAing or lump summing.
I don't think that DCA method is better than lump sum, they are different strategies for accumulating Bitcoin. If you are on monthly or weekly salary then DCA method is best for you because your income is more or less fixed, you can conveniently remove allocation for buying Bitcoin from your discretionary funds. If you're a contractor who receives payment when a job is done, if you receives an inheritance or any large amount your best option is to buy Bitcoin in lump sum.
No need to share a huge amount that is received once into bits because it is not salary that you receives on specific dates or time. Whether it's DCA method of accumulation when you receive salary or buying in lump sum when huge amount drops on you what matters is the mindset of long term hodl. So the goal of the two accumulation strategies are the same, buy and hodl for the long term, don't sell prematurely on the short term.