[JMT1985]

You get the feeling there is an attitude that Chris Chibnall's era caused so much damage to Doctor Who canon, that RTD is using the writers from the 2005-2017 era back to shore up the damage done

The quality of the writing was appalling at times during Chibnall's era, he really gave Jodie's 13th doctor a lot of exposition/plot dumping of material, where she literally talked so much and of course his choices of stories and plots are questionable, along with the lack of character development

This does feel like fan service and damage limitation and repair work happening by RTD