By "a lot of time", they didn't mean the actual designing time, not at all. They meant to say the time it took for the team and the company to agree on one single design, because they probably had tens of designs to choose from.
I'm a designer, this happened to me several times already. It could take 6 months of back and forth revisions or even a whole year for the company to agree on one simple logo. They are lots of stages to go through from designing to final approval, and when they said "a lot of time", they never meant it literally.
Furthermore, the actual design itself doesn't even resemble Skyrim. I would say, it's actually inspired by Transformers.