That seems to be the case and our SBN brethren at Headkick Legend speak on it as they've spoke with some folk from M-1 Global:

According to M-1 Global, Strikeforce has not honored the contract that they signed with M-1 and the only way Fedor will fight in a Strikeforce cage again is if they sign a new contract. M-1 is looking for a partner and to have Strikeforce cards featuring Fedor to be fully co-promoted cards. 

M-1 Global is looking at other potential partners right now if Strikeforce doesn't shape up. Generally speaking, that does not mean there is a healthy relationship with Strikeforce and that the chances of seeing Fedor fighting outside of Strikeforce have gone out. Now, is this just them trying to scare Strikeforce into conceding to their demands or are they seriously shopping Fedor and M-1 Global around is the question. 

 So was Dana White right about M-1?