Na, google the meaning of strongest its that simple.
the strongest is at the top, and an ad coc user is qualified as very strongest.
Oda could have stop at strongest but he is aware there are agenda man like you so he did the unecessary by adding very inside so that it can sink into your head that ad coc is a high top tier power up.
like I said you are changing the wording .
If oda wanted do what you just coped about he would have said only the very strongest can use ACOC .
Not only (few) of the very strongest .
BY saying this Oda is telling us that the very strongest are not just acoc users .
IN facts in the very storngest fighters in the world of one piece only few of them are acoc users (Meaning it is a rare ability) .
This is what oda is saying but nowhere is that stated that the one that use ACOC are stronger then the other very strongest .
This is what you want.
Now this is facts you can't denied .