This is especially important when we know that 1 Bitcoin was trading around $69k last month.
Now let me play a advocate role here and say that it's nothing strange if they converted Bitcoin to fiat currency to buy groceries and stuff for charity, because most shops don't accept BTC.
All they need is to provide some evidence for spending and converting coins to fiat and all this story would finish quickly.

What made me confused is when I even saw a post when C13 suggested that one gambler addict should send his Bitcoins to this ''Charity'' project, and I don't know how ethical this is, but whatever.