I am disappointed with Byleth's inclusion, but at the end of the day, I'm just whatever since I have Banjo and that's all that matters to me at this point really. With that said, I am annoyed that our first party character of this Fighter Pass is yet another Fire Emblem character. Like, I wouldn't be so annoyed with it if it wasn't for the fact that there are several other Nintendo franchises that are way overdue for a new character like Zelda and Kirby. And even with them giving Byleth all of the lords' relics, I still find him to be a very dull inclusion compared to the other house leaders. I feel like if they switched the reveal order and had Byleth as the third DLC character after Hero and saved Banjo for last, then there wouldn't be nearly as much backlash over Byleth's inclusion, cuz revealing Byleth as the last Fighter Pass character after someone like Banjo and Terry is the definition of underwhelming.
Side note, I also find it to be an unholy sin that we don't have God Shattering Star among the Three Houses songs in Smash.