Okay if it involves brain degenerescence, but for most diseases, assisted suicide + cryo makes survival less likely than hanging on as long as possible + cryo. Also, there's a slippery slope from Alzheimer's patients getting frozen before their brain melts away, to terminal cancer patients getting frozen sooner than they absolutely must, to depressed patients getting frozen en masse rather than attempt treatment. Cryonics is the second-worst thing that can happen to you.

arranging cryosuspension discreetly and avoid any PR implications

Black swan. If anybody finds out, there'll be a huge scandal.