"Dave Butler" wrote:
Is this an issue of sufficient importance to waste the air time in a
very busy airspace? I'd just like to know...

It's his air time. He can waste it at his discretion.

If you were handed off, he knew you were coming, he knew you were on the
right
freq. Not clear what his motivation was in making the correction, but it
really
doesn't matter why he chose to make the correction. Just acknowledge and
press
on (as you did).

I've inadvertently called Atlanta Approach "Atlanta Center" when checking in.
They don't like it.
--
Dan
C-172RG at BFM