According to my daily email:
“Happy Holidays [your name here]
‘Tis the Season
As the holiday season approaches, …
We hope that your holiday and New Year ”
Holiday is always singular and is never given any thought to being inclusive or broad. Holiday never includes “New Year”.
Other holiday emails seem to always be after Hanukah, and way after in some cases.
Ergo, they can call it whatever they want, but in context it always means the same thing. It’s just an insult to my intelligence when they use the singular “H” word instead of the “C” word.
Like others have said, I doubt there will be a Mass or anything remotely connected to a real holiday. Maybe if they exchange presents?