I think Guardiola had earned the right to pick whoever he wants as someone who will be 3rd choice CB for a few months, then 4th choice from next season.
Do I get excited about Evans? Not really but he's coming in to do a job, be better than Mangala and give us enough depth to compete on 4 fronts.
A guy who wont mind the periods he wont play, can hit the ground running because he doesn't have language issues, hasn't just moved countries and knows the league inside and out is perfect for our requirements right now.