There is a right way and a wrong way to be entertaining. Ami does the wrong way.
You want a caster who managed to be extremely entertaining while actually doing his job, go check out VonIvan's cast of OMGPOP and Luvnest.
Ami is entertaining and makes things relatable, and obviously he appeals to a relatively larger audience. Not everything needs to be tailored to fit the needs of "pro players" such as yourself.
On a side note, I'm getting tired of people who are literally incapable of doing anything other than complaining. Never productive, just bitter. OCF was a huge success from my perspective, thanks to all the staff who put in the effort.