Well, they don't have to. He could have insisted on writing this condition into the acquisition contract. But he obviously didn't. The most charitable reading of this is that he was just naive and didn't know that this was an option or that it would be necessary in order to enforce such a promise, but that seems unlikely. Acquiring this knowledge is no harder than posing the question to his M&A attorney. Hence...
> I absolutely do not t respect yet alone absolve him of not doing so originally. Why would one?
I think you made the right call here.