For now; but do we know for certain that he's being given the benefit of the doubt so far as 'He might have the X-Gene'? I think it's Shogo's age that grants him just a bit of leniency here, to be honest...
(And yes, I'm aware he does become Sentinel-X in the future...but then, that might just be another 'possible' future that Bishop, Cable, Rachel and Hope hail from--totally at the whim of a retcon if need be.)