Experienced people will never buy Bitcoin when the price is rising, they tend to wait for the price to drop and then buy and store it for a certain time to take big profits later. Therefore, in investing in Bitcoin, never FUD and FOMO and must be able to manage emotions so as not to get caught in big losses.
That is a wrong approach waiting for Bitcoin to dip before accumulating is a misleading information and inexperience so what you mean now is that Bitcoin price did not dip an investor shouldn't accumulate Bitcoin right, for as you keep on waiting you are missing the opportunity of accumulating more Bitcoin the dip should only be an opportunity for any investor to accumulate more Bitcoin, the reason why the DCA strategy is there is also to help an investor accumulate more Bitcoin either weekly or monthly irrespective of the price and continue to hodl for long periods of time. So advising people to wait for Bitcoin dip before accumulating Bitcoin is wrong.