RekSai isn't losing Vision

On the Dominion map Reksai doesnt lose vision. I know you always have vision in the outer ring, but I think her burrow should follow the standard set by other sight obscuring moves such as 's R or 's Smokescreen.

I don't know if it is a bug per se, but it seems to be something that was over looked. I know Riot doesn't really focus on balancing other game modes, but I think it would be a nice QoL change to make her less dominant on this mode.