The said scholar and WT scholars are well aware that the PD tables do not allow for the 20 year gap in NB Chronology and that is no big deal for PD tables are about Babylonian Chronology and WT scholars are all about Bible Chronology.
Oops. The real issue pokes out from behind the mask a bit here. Doesn't matter what the evidence shows - it's "no big deal" because he's always falls back on his "Bible Chonology".