Just because a person hasn't gotten good at doing something doesn't mean they can't realize how easy it is. Ex. A 15-16 year old can recognize that despite not being able to drive well yet, driving doesn't take much skill.
If this game took no skill then everyone would have a 1.0 k/d never improving no matter how much they play. Thankfully that's not the case as BO2 is one of the most competitive games I have ever played. With all of the major LAN events like CoD XP ($1,000,000 prize pool) that's evidence enough that CoD takes skill. If anyone wants to argue that it doesn't take skill then they can surely beat me in a 1v1 to prove it.
PSN: FinomenaI (last letter is an i) GT: r3flex nMe