Spoiling her in the process throughout her childhood.
So -- let's establish this. Taking care of and providing for a chid you brought into the world is spoiling her, or is that only when its Thomas raising Meghan? Do mixed race children deserve to receive no support, such that basic things like paying for the best education you can pay for your child, giving her toys to play with, is equated to spoiling? Did Kate's parents spoil her by sending her to private school? Why do we never hear of spoiling used in his context? Why is the standard different?
You still have not said why he wants to see one set of grandkids and not the other.
Perhaps, in the same way he did not believe his daughter was mentally struggling, and told Piers so, she too does not believe he is struggling.