I hear you. And we're not jumping on it unless they ask us to. But I was also trying to spur them on to let us know if we should.
In the big scheme of things, $300 is pretty minimal compared to the potential income of my wife during the 2+ month delay if we had to get them redone (and didn't find out until they were very near expiry).
The DMP in our area is very difficult to get appointments with (I believe she was booking 3 weeks ahead of time last year). Then if tests need to be redone, that's a bit longer, then who knows how long until Ottawa receives, processes and forwards the results to Buffalo.