Not really at all. I have a small store, but I still have 5,000 different lots. If I start to get orders through saying 'brick yellow' I'm clearly going to have to re-reference all my storage for 'tan'. This isn't because everything is pre-bagged, it's because a Bricklink order will tell me which tray/box/drawer to look in for the part. If this gets messed up, even at 30 sec. per lot to change the description that's a couple of days of non stop work.
Saying 'truly savvy sellers should also be doing x' is also not going to bite, as the colours have been referenced as they are right back to the days when Peeron was the prime source for information. I would be fairly confident that the 'newer' dark gray is referred to as 'DBG' on this site far more often than it is as 'Dark Stone Gray'.
I would say rather that truly savvy sellers will be selling on both Brickowl and Bricklink, and therefore will be able to cope with either naming convention.
It's a bit like metric and imperial, we really should have just one standard, but most people can cope with either, but changing from one to the other is not trivial.