It is perfectly fine pointing out the the current Mac Pro is 2.5 years old. It is also perfectly fine pointing out that a new Mac Pro released six months ago would not be very different. Because it gives context as to how much we are missing compared to a situation in which a new Mac Pro had been released.
You're totally right quibbling about 6months on processors for the Mac Pro doesn't at all make you look like a desperate white knight fanboy coming to the rescue of your favorite brand. Apple is on the cutting edge of technology with a monitor that hasn't been updated in 5yrs and a Mac Pro that hasn't been updated in 3.
Are we done here?