Unless they are planning to generate some sort of income from mods, but even then where is the incentive to spend the resources? I anticipate this will be a large issue with the workshop.
For example, if a corporation can wrongly extend derivative works law to include completely original material displayed in the context of their framework, what is the incentive for content creation on the internet?
That being the heart and sole of culture, not to mention supply and demand. When that incentive is bled off, only failure is sure to follow. Any modern society which fails to see that will certainly fail as well.
"Do you think that makes the ekominey svck?"
They can also shut it down if the person selling the CDs use Bethesdas trademarks (Thus, even mentioning that the models are intended for or can be used for elder scrolls mods gives bethesda a case)