This is definitely not true. the 2016 Conseillante I had yesterday? Smashingly good - I didn’t want it to leave my mouth. The 2019 Lynch Bages I had last week? Same. They may be even more magical in another 15 years, sure, but it’s silly to say they’re not delivering pleasure. Of course not every wine and not every vintage are as accessible, but I don’t think Robert had any trouble deciding whether the 2019 DDC was pleasurable.
They already are, and it has less to do with global warming (and grape ripeness) and more to do with farming, winemaking, and elevage choices. WK has been talking about this for years now.