Of course not; the data would come from FB's EU servers. The "transfer" above applies to where the data is stored, not where it can be accessed from. From the

Of course not; the data would come from FB's EU servers. The "transfer" above applies to where the data is stored, not where it can be accessed from. From the users point of view the only change would be... nothing; the latency is already at the point where it wouldn't incur any observable penalty.