This is only main point of view but ..
When I was younger I was trying "study" the ME. Then the more knowledge I have gain the ME behavior seemed irrational.
I don’t think the changes in the new ME fix that. The fact that the ME has been updated so many times since November indicates that the game still has lots of errors.
To put that into perspective, you pick the best teams like Manchester City, Barcelona, or Liverpool.
Pick an individual tactical instruction for a player. Let’s say “cross near post,” with the main crossing set to low.
By picking the best team, we exclude issues with attributes, as these are some of the best players in the world.
So please answer: why do these players still cross high balls to the far side?
Going further, you have individual traits like some defenders “stay back at all times.” Yet, he randomly ends up on the opposition side while your defensive line is set to low.
How, in a logical world, would that be possible? It is rather a rhetorical question. The flaws in the ME make things unpredictable.
This is why I don't spend hours to find ideal players anymore.
In FM 24 I won Bundesliga and CL with Elvesberg having average players. Owen Beck who is rated in GScout is 75% W but I had him as win back. was POM in CL final.
I'm not saying you shouldn't buy better players because better players will give you more chances of winning matches without making changes. I just don't think it is necessary to use GScout to look for someone who is rated 90% because 80 will do similar job with more hassle.
What is more interesting for me is that I have some knowledge of how real-life research works. Back in the day, researchers tested people’s behavior and then calculated statistical probabilities.
Nowadays, they have concluded that it is far more complicated—that you cannot assume one person thinks like another. Therefore, most tests require face-to-face interviews where you collect more detailed data.
I don't think FM ME is that advance.