Claiming last nights game to be little more than a friendly, only to then go on and say the opposing team needed to win is a little contradictory. Nothing to get excited about, just thought it worth mentioning.
I see what you mean now, and I should have clarified sooner, so I'll rephrase and expand.
Shakhtar clearly approached the game like a team who needed to win, because they did. They played well and got the job done, and they're through to the next round. But City on the other hand were already through and guaranteed to finish 1st, so we definitely treated it like an exhibition game - before, during, and after the match, actually. Even as early as two weeks ago, De Bruyne got himself suspended in the game vs. Feyenoord so he wouldn't have to play in this one, and Silva was suddenly "injured" this week. Mourinho has, of course, seen right through it.
As for the team we started last night, I wouldn't have been surprised to see it in a pre-season friendly. Adarabioyo and Foden are kids, and referring to Mangala and Yaya as reserve players feels generous these days. Add to that, Foden was played out of position, Brahim was given half an hour when we were already 2-0 down, and Gundogan was given control of the midfield when he's still trying to play his way back into full fitness. I don't have the stats (or know where to find them), but I wouldn't be surprised if the distance we collectively covered on the pitch last night was the lowest of the season.
And after the game, Pep was pretty chipper. He's been miserable as sin after games we've won in the past (both games vs. Burnley last season, for example), so I imagine he'd have been incredibly frosty in his post-match press conference if he'd have cared one jot about the result or performance. He was shaking hands with Shakhtar's manager five minutes before the game was over, and he chose to focus almost exclusively on the performances of the academy players when talking to the press. Compare that to his behaviour and mannerisms and topics of discussion after our defeats last season and you'll notice a difference.
Am I disappointed that we applied basically no effort to the game? Only slightly, because keeping a winning record going is obviously not going to do any harm to our momentum. And I'm getting a little concerned about how Bernardo Silva fits into this team. But at the same time, I'm not sure our performance, attitude or the result has any bearing on the derby. Despite the quality of our first XI, our squad isn't that large yet (I've said for months that we needed an extra CB, LB and winger in the summer), so we have to be pragmatic.
Walker, Kompany, Otamendi, Delph, De Bruyne, Silva, Sterling and Aguero were all thankfully left out the starting XI. That's our entire defence, two thirds of our usual midfield, and two thirds of our usual attack. All of whom will start on Sunday. It's the same reason we left Kompany and Fernandinho out of the West Ham game too - they were both on yellow cards, and the game vs. United was more important. We're lucky that we had West Ham at home and then a meaningless game away before the derby, but that's what last night ultimately was: meaningless.
So, just to wrap up, I'm not sure it's worth reading anything into our performance when we, as an entire club, turned up in Ukraine for a B-team training exercise, treated it like a B-team training exercise, and came away satisfied despite losing. I think you'll turn us over on Sunday (2-1), but it won't be because our reserves performed below standard against Shakhtar.