It's a fair point about taking stats like that at face value. And that you expect dominant teams to perform less defensive actions. But by that measure, you'd expect Amrabat playing for a far less dominant team (City won the league and finished top of possession charts with 65%, while Fiorentina finished 9 on the table and only had 56.4% possession) to have more defensive actions than Rodri. Right? Wrong.
By the way United finished 3th with 53.8% possession and Fiorentina 9th with with 56.4% possession. Fiorentina are not
that much more dominant, not enough that it justifies such low number of defensive actions. They are closer to United than City and their league position betrays a team with frailties.
You might argue that these are league differences. Football is more fast & furious in the EPL, so more actions. So if we look across to the Serie A, the most dominant team is Napoli. Who won the league and dominated possession charts with 62% average. Better than Fiorentina in every way. They were the Serie A's Man City. So if we look at their DM, Lobotka, he should have less defensive actions than Amrabat. Right? Wrong.
Lobotka has more challenges, in every area of the pitch and with higher % of success. Lobotka's numbers are close to Rodri's and he plays a very crucial part in playmaking for Napoli too.
You can go and check the same against Barca and Busquets. Barca won the league, most dominant team (61.4% possession) so Amrabat must have more defensive actions per 90 than a 34yo Sergio Busquets. Right? Wrong.
Worse in every defensive category again.
Finally, this isn't just me throwing stats and hope they stick. I'm throwing stats to back up something I see with my own eyes. Amrabat is indeed a pretty good deep playmaker and a big part of why Fiorentina dominate possession against most teams. We saw that in the UConL final too.
However he suffers on the defensive side of the game. Which is also why Fiorentina play another DM next to him. And again we saw a bit of that on the UConL final where Fiorentina dominated but on the occasions when West Ham attacked, Fiorentina and Amrabat failed to cope including in the second goal. And it's worth remembering that we don't plan to play with 2 DMs here. We'll play with Mount and Fernandes, without a doubt. Which means only 1 DM to do all the defensive work, which Amrabat is not cut out for.