...Are you kidding me? I hope you're kidding me.
If someone took my idea without my permission, made money off of it, and what's more changed it to make it worse, I'd be infuriated. Why should you derive pleasure out of someone throwing your reputation in the mud?
They may be 'freakin' awesome", but it's still add-ons to LEGO's intellectual property. Sorry, but that's illegal.
Having more options is better. Having more choices is not. You can't scramble anything you like and get LEGO at the end, it doesn't work.
Hmm, and all the specific individual parts LEGO designed and which they are clearly stealing. Never once did LEGO or anyone else state that the Akaku or Hau Mistika is just part of a building system - they're specific pieces representing their individual property. Shake that one out of a court.
Oh, and by the way, those charming chaps at AliExpress have been stealing fanart and proprietary character names. I don't know about you, but I'm pretty sure the only reason they're getting away with any of this is because they're not in Europe or America.
Still, it's LEGO's idea. If they made a ball and socket system, LEGO couldn't touch it. However, they're not, they're directly stealing LEGO's ball and socket system.