Hi Kevin,
Yes any import of any file would be impacted by this event (FTP or UI imports). We are getting pretty close to being caught up either today or early this weekend by our estimates.
In Target, you can validate what values Target has for your current visitor profile via an Mbox trace. In the trace you'll see the profile parameters in there and the customer attribute values will be included in that mbox trace. I believe the parameters are like crs.(data source name or id).attribute something like that. In the Adobe debugger it might be in the mbox parameters or you may have to do a full mbox trace to get that level of detail.
I hope that helps,
Seth
P.S. I've been working with our agent on that ticket as well.