Does taking abandoned and free regions affect XP/shards ?

Some players, just before final blow to win the game, are obssesed with taking all abandoned (by surrenders) or even free regions. "To increase XP and shards" - they say. Does it really affect final XP/shard count?
If yes ,maybe it should be something like that: at the end of game all ownerless regions are automatically counted like they were conquered by the winner ,to avoid waste of time.
If yes ,maybe it should be something like that: at the end of game all ownerless regions are automatically counted like they were conquered by the winner ,to avoid waste of time.