The price of btc can go up or down. If any person stake btc for profit & price goes up or down, then he can be in profit or lose whatever, he can handle.
But when its comes to organization then the company have to pay every person of organization whatsoever btc go up or down. If btc price go down too much then the organization will not able to pay.
They have taken good decision for their organization, So they will remain for long, whatever happen to btc.
bitpay makes payments acceptable whatever price and volatility is on market. For example.
I know the store is new and everything, but a bitcoin site that doesn't accept BTC as payment is really bad publicity.