I don't necessarily think that bitcoin will behave like stocks. They are completely different in terms of the motivations behind people investing in them, as well as the way that profit is generated.
But if you are investing in the long term, and you believe that adoption is really going to pick up for bitcoin in the future, then yes, it is a good idea to invest in bitcoin when there is a bear market, and price and sentiment is low. Just like you would try to pick out the lowest possible entry point for a good long term stock to invest in.
That is only assuming that you are willing to hold onto your position for a number of years. If you are a trader who is seeking short term profits, then buying at this point may not be a good idea since there may still be dips coming in the near future.