Where does this idea come from that he's a good DM and/or good at breaking-up attacks?
It should be one of the easiest jobs on a football pitch to do to a reasonable standard. There's very little technical ability required, moreover its about physical attributes and reading the game.
In essence, its an easy job to do reasonably well and a hard job to do very, very well. This is why you see many players touted as great DMs at clubs with lower expectations or who have less of the ball but they never get a big move and/or they struggle if they do.
In Fred's case, I'm not sure he even does the job reasonably well at times. He's small, he's weak, he's not especially quick. He's far too lightweight. He's easily shrugged off and loses most of his 50:50s. I can think back to four or five goals we conceded on the counter last season which he should have stopped at source.
Now, we all know he's not good with the ball at his feet. There's the odd little bit of flair but in general, he looks very awkward in possession and he isn't aware of what is happening around him most of the time. It's all very desperate, last-minute and scruffy whenever the ball goes into his feet.
In short, at best, you could argue he is a base-level reasonable DM (maybe, sometimes). However, the fact he barely ticks the boxes in that respect and can't use the ball either means I struggle to think how he makes it into many PL XIs. I mean, yesterday we're playing Newcastle...not Chelsea/Liverpool/Arsenal anr yet they have at least two CMs I would start all day long over Fred. That's a poor reflection on him and the club.
Its not a witch-hunt, he seems a nice, likeable guy....but he isnt very good!