[mst]

Regular readers also know that you're testing only one lens. Measuring 10 and getting sample variations also doesn't help much to verifiy my own copy.

Regular readers know that quite often we don't At least for my reviews there is often more than one review unit. It is not necessarily mentioned in the text, though.
 

It all is about "the best lens for the cash" - and it's not static, so the idea of a static rating itself is highly questionable

Right. Just what I said
 

As already said, I do not mind how you rate my lens

To be honest, seeing how much effort you put into arguing against the rating in this particular case, one might get a slightly different impression