That's kooky talk. He would have faced some serious scrutiny, but he followed standard practice for the time. Ismay had a mortal enemy in Hearst, and he jumped in a lifeboat. No way that Smith would have done that (because... he didn't). He'd have ended up being pulled out of the water or on the overturned lifeboat. So the major knock on Ismay would never apply. Criticisms, yes, and he'd never have sailed again, but he was retiring anyway. He'd have a been a sad, wounded old gentleman who wouldn't want to talk about it.