Not everyone agrees with "Contested catches" don't count as drops. Plenty of people measure a drop as "if WR gets two hands on it, he should be able to catch it" - I believe context matters, but in this case, it wouldn't just be Cooper that is getting hit with these flaws but all WRs. It would need to be fair and I'm not about to go through every single WR film to get the accurate number based on my interpretation of a catch.
As of right now, Cooper either has 3 or 4 drops through 4 games. This is not good either way, especially since he was relatively sure handed last year.
And I said Ebron leads, he isn't tied. he went into the game with 3, he had 2 drops in the games against the Colts. He has 5 (and honestly, this is being kind to him)