pretty amazing and this helps fans understand why there is a Rule of 46 in the first place
It was done for competitive balance in situations just like this one
IF the roster was 53 active on Sundays then Cleveland could potentially suit up 53, while GB only has 43 available.
The other reason for the limits on game day actives was to keep coaches from using gimmick players. IE- a 7 ft TE who only blocks FGs, or a having 425 lb fullback for 3rd and 1.