I always want symmetric licensing for community contributions. I have the same stance for Canonical and their Contribution License Agreement that also gives Canonical the exclusive rights to sell proprietary licenses.

This is a general stance I have, no matter who it is.

Valve does symmetric licensing for their SteamOS components, so there is precedent.

Also, I think you read way more into my comment than I actually meant, as if “sour taste” is the same as making demands.