I would never put spend on a Marriott/Ritz card as there are way better cards to put spend on.
Unfortunately Ritz has a 10K annual spend requirement to keep status. I'd agree if I could do 10K a year at just the hotels that's all I'd put on there.
SPG is good because of the number of partners, but I still have this pit in my stomach they are due to be devalued, I may just be paranoid. It's also hard because most places I travel for work don't have SPG hotels so it's hard to justify making it my every day spend card.
Overall I was trying to make the argument more around every day spend that being a good strategy to get more than 1x on almost everything without having too many cards.
FWIW I guess.