you are both right
he is right that the charts allowed for today drop plenty
and you are right that it was not obvious
in fact it was borderline gut hunching
re why this or that put - you can not address his choice of put line, it is his personal choice, and it has nothing to do with technical interpretation
at most you can look at what quantity vs BP one uses, but even that is flawed approach
don't be bothered you didn't see this one, we all flunk periodically, you had very good calls and that what matters