If this SmartTube thing is anything like Invidious, then it will work great until it falls flat on its face, and then I'll have to spend an hour figuring out if my stuff is broken or if SmartTube is broken. It will inevitably be SmartTube, and I'll have to have this conversation with my wife:
"Why isn't the TV working?"
"oh you have to use the normal YouTube app for a while, the other thing broke"
"oh, can you fix it?"
"I can't, we have to wait for someone else to fix it"
"When will it be fixed?"
"No idea."
And then, 2 weeks later, it'll start working again, but it will be extremely unreliable, and we'll both find it so annoying that we'll both stop using it. I did this shit with Invidious, I did this shit with my own fork of Signal, etc etc. I have enough needy computers, I don't need my TV to become another one.