Bitcoin has long moved away from being a currency and is now more of a value store like gold. Yes, Bitcoin is horrible as a currency, and that has been the fact for a long time now. This just shows how little Wall Street understands Bitcoin and crypto in general, and is struggling to find their footing.
It's also not a crazy investment. It is about as crazy an investment as gold is. This current 'bubble' is akin to the gold rush days, but look where gold is now, and the purpose it served since.
Crypto currencies are still in its infancy, and I have used them to make purchases and it has been a smooth experience. The fact that I can make purchases from other countries without paying cross border transaction fees and currency conversion fees... let's just leave it at that.