I tend to agree. Everything that can be done in terms of innovation of motovlogging has been done in my opinion.There's only so many ways to reinvent the wheel. I think people just need to get out there and record and do their own thing... if they have a naturally addictive personality, plus are interesting with it, they'll get noticed, people will subscribe and come back for more.
I see a number of (copy cat) channels now where they've used animated cartoon style faces imposed over the video (usually near the bottom / corner), to indicate the riders mindset, in sync with what's happening in the video. Some viewers might like this, as cute, while for the rest it becomes a (childish) irritation.
Multiple camera angles? Check
Drone footage? Check
Dual vlogs? Check
Off road? Check
Wheelies and stunting? Check
Long road trips? Check
Animation and graphics as you mentioned? Check
Stupid driver videos? Check
And the list goes on
I think it all comes down to the entertainment you provide while riding, your personality, and your overall content in general.
I think getting noticed is just a lot of luck. Gotta keep on keeping on.