As a long time Stake user this makes me feel concerned, I'll be withdrawing all of my funds and going elsewhere!
I think litigation between ex partners are fairly normal in most of the cases.I would advise you to not do so because that is a ridiculous amount to Stake,they,Stake offered like 900m as a bonus last December only during the festive holidays of end of year and Christmas.
Beside that I am sure they will settle the matter just fine between the two parties,in the end nothing to worry here.I am keeping my funds and keep playing there because there is no reason to move elsewhere.