As a suggestion, In order to make it completely 100% FOSS (Free (as in freedom) and Open Source), Redox should change license to CCO. Redox can be the worlds first truly Free and Open Source Operating System.
The reason why I suggest this is because the use who downloaded the distribution, the copy of the Operating System or source code should be theirs. Placing ANY kinds of restrictions gives of a sense of not owning the copy of the software.
If the license were to change to CCO, I also recommend to encourage people who want to make a distribution out of Redox to credit the original authors of Redox.
Let me know what you guys think.