Of course it does. If you would invest right now $1k into BTC at the $600 price and one hour later the price goes down to $20, would it matter? Of course it would.
If you are in bitcoin for investment, the price in dollars matters. But if you are into bitcoin because you believe that there is a need for bitcoin and crypto is the future then it does not matter. And in your scenario, only an hour passed. If your going to invest into bitcoin, do it for long term investment.