I don't know much, so my comments could be in left field.:c)

Is there a need or would it be helpful for performance to be measured
according to a baseline?

You set a baseline fore technical specs that amount to "good peformance".

In the review you say (by simple yes or no) whether at least the RX meets
that performance.

Ie, you set a baseline for "Good FM performance".

Sensitivity: 2uV (Whatever)
Bandwidth: 200 Khz (Whatever)
Image rejection: 60dB (Whatever)
Cross Modulation: Oh gosh no idea. :c)

Since I'm after at least good performance, maybe I could at least benefit by
such a simple table.:c)