Weird coincidences...Azizovic's club had first playoff match on 21st and Serbia-Turkey already on morning of 20th. He was 2nd keeper in his club at all. If lineup was set at 19th evening it would be really bad surprise to manager.
But there is nothing suspicious in playing defender as DM. For example Estonia has currently zero normal DM-s in shortlist, just some crap imitating them without specials trained(meanwhile we have several decent DM-s in league). Serbia has Vesic in selection, but again we don't know whether he was called up later like Dijakovic or was suspended. Stojanovski has played regularly on DM position through whole tournament and on defensive part of DM he is probably better than Vesic.
If match like this happened on first years of game it would surely lead to some changes in game. Just like in real life Stoke City has connected at least with two changes of football rules. But we all know how it is with game development.