I'm just being critical of inexperienced designers making a fantasy heartbreaker. It's clear that MCDM as a company is a heavily 5e and 4e design team (or worse video games) and lacks a lot of basic understanding of the medium. One of their core design goals is unachievable, cinematic. It's fine they are trying things, but it looks more like they are just learning the medium of RPGs.

In the video he even states that if a simpler/established dice resolution system works then they would use that. Which suggests they tested all these systems after 2d6, because it doesn't achieve their design goals. They just realized it worked the best for their bad situation.