Or: "What can I do?"
I would hesitate to make statements about what others can't do.
It's a good question/comment. I think someone has to earn the right to be taken seriously and to be considered competent. In that sense, I think a minimal first step would be the static ability to replicate Tohei's (Ki Society) "ki tests". That should be the threshold before someone can even talk about "expertise". Secondly would come moving well with ki. Lastly would be moving well, using the hara (and it's a lot more than just words and fantasy, to do that) *and* having Aikido skills that mesh with the ki/kokyu skills. Basics first... then you're qualified to discuss someone else's basics. Upward in skills from there.