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.
You are correct actually.. if bitcoin price never increased that much. it would not get that many users too.
but since bitcoin took its place and got user's trust. now I don't think if bitcoin price drop little bit people and companies will stop using it..