What would you choose if Sony offered a special release series of accredited lenses for say $100 extra, in addition to the standard output lens? These could come with a certificate and test chart.
So the FE 55mm might have a small run added to the general production line which could be offered for sale for say $1100 rather than the regular price of $1000? I chose that lens deliberately because I have lost count of the number of internet experts who would 'never pay $1000 for just a normal lens'. Sony is already up against buyer pressure to constrain costs, and is being kicked for making such a fine lens at a still quite fair price.
I'd pay the surcharge in a heartbeat but that's me, living in splendid isolation here in Australia where we already pay much more for most photographics in a small market.
Special series might be extended to lenses that have no cheaper counterparts, which is really what Zeiss and Leica do anyway. Zeiss already test each copy of the 15mm ZEF Distagon for MTF, they told Lloyd that. I bet the Otus is very well assembled and QA is very good.
What is happening is that buyers range from folks like Tim and Zoran right through to folks who just start shooting with whatever they buy and get upset only at really obvious defects. The makers try to strike a balance with a wary eye on their bottom line.