Comment by jraph

Yes and no.

It's often useful to know the motivation / reason behind a change. Especially a policy change. Maybe the change can subtly enable harmful stuff you don't see coming if you don't have the context around the change.

You also want to know the intents being a change to know if the change actually works towards the intended goal while reviewing. Or else how do you check if the change help?

It would be like a code change that doesn't say what it fixes or add, how do you check it does the right things?