Interoffice memos were often used to document important issues that had been previously discussed. I'd be really surprised if this issue hadn't already been brought to management's attention verbally. In the early 90's (pre email), I recall having to put things in interoffice memos so that there was a paper trail of meeting discussions.
Exactly. The memo was a way to put a stake in the ground that can be impossible at a meeting that someone else is conducting.
At a meeting, if the organizer chooses to move on to another topic after you present an issue, you have no choice but to go along. Here's a Shuttle Flight Readiness Review at Kennedy Space Center:
Currently, the (large) meeting room at NASA JSC where flight decisions are made has many big red hand pieces at which anyone who has an issue can break in.
