> Can I please just get the detail in mail so that it is archived with the list?
Of course you can't expect every email written to be perfect, it is generally treated as an informal medium in these settings. But stating the reason helps people understand your motives and serve them better.
Any bug of the form:
Hi, I'm sending this via official channels, but see [external thing].
Is going to immediately bitrot. For instance, in stack overflow, for something like 10% of answers, you'll see people saying to explain what a link says instead of just linking.