There's always been kid friendly versions of batman, from the 60s version with Adam west to batman:the brave and the bold (that was an amazing cartoon IMO ^.^) so lego having a kid friendly version isn't anything new I'd say. Ultimately, while lego may have a kid friendlier version of some stuff, I don't mind it or think it ruins it. I think of lego games as spin offs to whatever the source material is, since there are plenty of side games and shows from these ip that are lighter in tone. And considering how DC especially as of recently has been getting darker and darker, it's nice to see the lego versions are still family friendly. And just as a side note, rebels and clone wars are both much better then they initially seem.