I don't know if my perception is not enough to understand some things about the game but so far I haven't notice any connection of the skills and player's performance.
I didn't notice that in the old T11 too.
Example my player Muhren. 4th year for him in the team, he is fast trainer and have the higher attacking skills in my team.
Besides a very high crossing skill, he has also this sa.
But didn't help him to have enough successful corners in my League so far. (keep in mind that I 'm playing in a very weak league of 3* teams).
Later I put my new star, RIjkaard , kicking also one side and then replace totally Muhren as he showed more talent.
82% vs 243% at crossing
So, what is the connection of individual skills with performing some actions in live games ?
Nothing.
It's only the total quality, the "talent", maybe a hidden factor like affecting performance in one season.
It's just that some Vietnamese players discovered that 1000% glitch and spread the news.