Awful physics. Players running into coverage all the time, auto interceptions (I call them magnetic legs), predefined routines that lead to a high interception rate when the goalie passes the ball or any defender inside the box or around it.
In real football, most goals are scored within the box from about 11 to 20m central position and mainly because of accurate passing. In FIFA it's longshots, crosses and skill moves that make the difference.
Defending is almost impossible because you can only control one, a maximum of two players at a time and the rest of the players stop running or sprinting at a predefined line or don't cover. Even if you are in perfect position to tackle, passes through your defender('s legs) are very common. And then there are offensive rebounds en masse. In your defending third, most blocked balls pop right back to an opponent.
As this is all programmed into the game there is no way to prevent that or to improve your own gameplay in that respect. It's just hard to play build-up, because at some point the computer will make an easy pass look like it's the hardest thing ever for a worldclass kicker. Consequently most players tend to use pressing and aggressive interceptions so the computer automatically intercepts many standard passes with a leg raise for them.
If you look at professional gamers, they also complain about the same points, because as a player you want control of the game and not the game having control over your play. In FIFA 19 the contrast between automated and programmed action and random play is way too high and therefore uncontrollable which makes this game no fun to play. Unresponsiveness, lack of tactical AI kill the rest of joy out of the game.