Compton was an active duty Psychonaut. They even have him mentoring an intern.

He spends most of his time in psychoisolation, yes... But he's still on the payroll and he agreed to a wellness check when Raz asked.

So... The simplest explanation is that an organization in part motivated by helping people with psychological issues never asked if Compton would be down to have someone see if there's anything they could do poking around in there.

Unless you want to argue that Raz is just... Better at it than every psychonaut in existence, and to be fair, for all his faults the boy has a great deal of care and empathy for people which seems to be in short supply... In general. But if he was just good at it he woulnd't have made that mistake with Boyd.