Tag me much?I am sorry that you feel it was not helpful.
I will note that the text you quoted was not a response to @kjdavies asking about the meaning of revocation in contract law (i.e. as used in treatises, judges and lawyers), but it was a response to @kjdavies asking about the meaning of revocation in a contract (i.e. as used by parties to a contract). Those are very different questions with different answers.
I could have written a post about what revocation means in general English usage, or what revocation means to the community of licensing professionals. That post would have a very different tone, stressing the determinacy of contractual interpretation over its indeterminacy.
My own feeling if that the post placing the parties' intent at the heart of contractual interpretation, and the resulting indeterminacy was more helpful in responding to @kjdavies question. I am trying to be helpful to @kjdavies based on nothing more than a couple of lines of text in a forum post, but I freely admit that I could be wrong and a different post with a different tone and emphasis may have been more helpful to @kjdavies. (And this is a good point to state that the fact I don't really understand @kjdavies particular situation, and thus it is difficult to know how to be helpful, is one reason that this is not legal advice to @kjdavies.)
I would suggest that if believe my post was not helpful, and you are trying to be helpful to be @kjdavies, it may be better for you to respond directly to @kjdavies with your own views about the best way to respond to his questions.
(It may also be helpful for @kjdavies to evaluate your view if you posted your identity and credentials, as other legal professionals have, but I believe you have not.)
Cheers,
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In matters of law, there are complexities, nuance and exceptions to everything, including things said above. Don't expect a complete discussion in a forum post. Moreover, even if there are no complexities, nuance and exceptions that apply to your situation, there may be consequences that apply to you that you should consider. The fact that I don't know what complexities, nuance, exceptions and consequences apply to your specific situation is one reason (among many) that the things said above are not legal advice. So, I'll say what you hear so many lawyers say. The above is not legal advice. I am not your lawyer. You can rely on my legal advice only when we have discussed your specific situation after entering into an engagement letter with me or my law firm, and have agreed to pay me or my law firm for the provision of legal advice.

If it means anything, @bmcdaniel, I found that post illuminating and very helpful for my understanding. You answered the questions I was trying to ask in a way I followed, even sleepy as I was.
I'm trying to feel this out based on logic, because I have something of an interest in the outcome, but I lack the vocabulary.
(I helped a friend study for the LSAT many years ago, blew him away on the practice exams... he went on to law school and told me I was fortunate to not go there because even though I'm highly logical, the vocabulary is different enough to be a different language and I'd be very aggravated...)