Totally agree. I mentioned a week or so ago, that those 3 really seem to compliment one another, with each one of them able to offer something different. Between the 3 of them, there isn't a weakness.
Yeah there is, there's some glaring weaknesses - None of them are ball carriers, none of them will dribble with the ball and inject some momentum, and none of them are goalscorers.
The best midfields, like Pep's Barcelona, have a midfielder who will take people on as well as arriving late in the box to grab goals, on top of just controlling play and retain possession.
Iniesta would get 10 goals a season for Pep at Barcelona, and so would Xavi.
At Bayern, Schweinsteiger and Vidal got goals from the midfield.
Kroos-Fernandinho-Gundogan wouldn't get 10 between them, and that would put a huge amount of pressure on the front 3 to deliver.
If you are playing a 3 man midfield, one of them needs to contribute in front of goal.
I'd have loved Kroos before we signed Gundogan, but there's a lot of overlap in their style of play. Now, I'd take Pogba over Kroos every single day. He provides goals and will take players on if things get static.