Filecoin, at it's lowest value since inception, traded for ~ $4, which would still make this a $200k donation. I hope we can agree such a donation is still worthy of praise.
Any currency risks devaluation in some form. Cryptos are orders of magnitude more volatile than USD, of course. That is both a curse and a blessing. This donation is evidence of that, but belittling this donation because of disagreements with the underlying tech does little to add to the conversation.