I think they have to do something to allow her to actually control space, bc as she is now her role is incredibly niche, she is so good at stopping fast rushes at her site but if a team defaults or contacts through space, then she is basically useless. Lurkers have free reign all over the map with her playing, so I think a buff for her has to be making her proximity detect people in the space. Maybe make it so if the mine sees someone it pings and then if noise is made it does the stun. This makes her better on attack as she can now watch flanks, and on defense she is slightly more viable as solo sentinel since she can passively hold space