Oh, and that tri-bladed saber thing? Still as dumb as it was when they first showed it.
I also didn’t like this when I saw it in the promo material but in the context of the film it worked. Unlike Darth Maul’s double-ended saber, which was simply a case of ‘let’s make something new and cool to sell toys’, Ren’s lightsaber felt raw, uncontrolled, and not quite finished, just like him. It’s a weapon constructed by somebody who wants to be a Jedi/Sith, but hasn’t quite mastered the skill or constrain to do it. It takes skill and wisdom to build a light saber.
Maybe I’m making excuses, but with the above explanation in mind I don’t see it as a tri-blade saber. I imagine those extra blades as vents or something, because he couldn’t quite figure out how to replicate Vader’s light saber without them. Another failure on his quest to be as great as his grandfather.