The phrase buy the dip is only a good advice when you apply it properly by buying the very good altcoins whose value is only down because of the bearish market condition. Because it is not all coins that dip that would recover their value.
True, unless there is a certain Elon Musk to lift those shit coins from the blue. Buying the dip is more appropriate for coins with a big market cap such that the chances of a collapse don't exist while the value always lies in the future. Buying the dip doesn't always mean that one should buy just any coin during a bear run because some coins might become dust after the bear run is over.