Name-changed just in case. Some details changed to avoid outage.
My very good friend (F) has asked me to post this.
F and her DiL have always had a good and loving relationship and choose to spend time together without the son around. F is a kind and loving grandmother/babysitter to her 2yr old DGD and will be to the one that arrives in the new year. However, she has concerns that DiL has turned into Christmaszilla. 
DiL says that this is the first Christmas that DGD will know what's going on and is determined to run it like a military operation with all the extras. It has to be memorable and magical. There will be a Christmas Hamper, Elf on a shelf, homemade Advent Calendar with home made presents, decorations up the moment December arrives, outside lights and so much more. She's making noises about a trip to see Santa in Lapland - you get the picture. Every time they meet up DiL has another new idea from somewhere.
F is expected to help and do a lot because pregnant DiL "can't do it all!". F feels that most of it actually doesn't need doing. And suspects she may be expected to fund a lot of it. She's wriggling out of things as kindly as she can and is considering breaking an arm so as to have a better excuse.
We are both in our 60s and remember Christmas as a very magical time without all the stuff that people do these days. It was magical when our DCs were small without shelved elves etc. I'm all for family traditions at Christmas and we keep to all of ours and they make the magic - but forcing loads of new traditions which are tiring (and expensive) to execute on over-excited children seems crazy to us.
Are we being unreasonable old fogies?