Lindelof as the best player of the month is well deserved. He has definitely been one of the 2-3 best players for a long time. If I'm right, he was also just beaten by Martiall in the vote last month?
In addition, he has been the one who has improved his game more than anyone this season, possibly then with the exception of Martial, when many of our stars have rather done the opposite. Not DDG of course, he's always good.
So I think it's very well deserved and pleasingly, many others seem to think the same.