Close, but not quite. My concern is an express copyright license that allows very liberal use. So I am person who wants to modify the software, add malware, and go ahead and plant a logo on it that is under a license that says essentially I can use the logo any way I want. So my use of the logo is licensed, my malware is licensed (because I can modify the software anyway I want), I'm good. Ok, maybe you have trademark guidelines that say I can't do that, but who cares? I have an express license to the logo and I may never have seen the guidelines anyway (much less agreed to them), so they aren't enforceable against me. Why aren't I home free? You can say "ah, that copyright license says you can use the design but not the goodwill." Good luck with that - will it work? Sometimes, yes. Always, no. The moral of the story is don't put your logos under a FOSS (or CC) license. All rights reserved on those suckers. Which is my original quibble, the copyright license IS the right place to be putting the restriction.
Pam