Congrats to the both of you,
Not sure about guns used,
Remember purpose of the course is to make sure your safe and ethical, not to make marksmen out of you,
Don't know if they intentionally misalign the sights,
Or could be they use whatever guns they can get a hold of and may not be sighted in on a regular basis,
They may be lower quality, and/or get banged around a lot during transport for the classess.