It's a really interesting watch. It also describes why I compare Telltale games to RPGs like Witcher 3 for how much actual role-playing is present as they both utilize "role-flexible" main characters.
Edit:
Errant Signal basically talks about the state of player characters in single player RPGs, highlighting the 3 main types. He's not trying to prove anything right or wrong, just talking about role-playing in a digital medium basically. I found it interesting due to the fact that most RPGs mainly focus on combat and static narrative (for the most part) instead of role-playing. For me, an RPG is about the world/characters reflecting your choices, it's not about the RPG elements like stats, levels, loot, etc.