So I read this and my thoughts were exactly this "meh." I would not be excited to see this license. Not much I can think of that would be in that license that I would want/need or more importantly...use.
But the reality is LEGO is and has been actively gathering licenses. Some are due to their relationship with Disney (see Marvel, DC, Lucas, and all other Disney related themes that have and do exist and you might go
) and some are due to films, either way, currently LEGO is going after licenses...whether we the AFOL's or TFOL's like it or not.
Relevant to today's society? I'm not sure that is something they consider. Relevant to what a kid would buy? I'm sure if it is going to exist then it tested well...and they do test the lines with kids. Relevant to what a kid should buy? I don't think it is my place to decide what a parent lets their child buy or play with. Therefore I don't think I will debate that.
Also, just because they obtain the license, does not mean they will use it immediately. They had the Harry Potter license for a long time and it went dormant for a few years, then came back with the best sets of that theme right before the license expired.
My only guess is that LEGO would think they could make a profit off this license. And with the number of competitor brick companies popping up all over the place...and they are...it doesn't take a lot of imagination to make the jump from "oh this isn't what why normally sell" to "okay boys, we need to compete and licenses are our bread and butter..so jump on them all."