Im not sure why or how BC casino would engage in editing or cheating on such games and system. This is the first time I have seen someone accuse a casino of manipulating the seed and hash also known as the Secure Hash Algorithm if possible in first place. Everything appears normal to me from what you shared in the OP except for the screenshots you shared now which differs from what is currently visible on the GitHub script.
It will be difficult for anyone to believe your accusation without actual evidence. It would be more convincing if you could provide an archived version of the link using [1] instead of relying on a screenshot that can be easily edited.
From a logical standpoint BC is a reliable casino as i know and it is unlikely that they would risk their reputation for such actions. Beside that Im not sure if they have the capability to manipulate that system in that way just to make some players lose while they can set low returns instead of that and make it less suspicious.
[1] : https://archive.is/