I agree with you, but I'd say it's a 50/50 toss up with women. Half of them would agree with us. The other half are too busy planning a 300k wedding on a 15/hr salary. Those types sometimes care more about the ring than the partner.
I know a lot of women who would be thrilled to be proposed to with a cat.
In the past, I've also known women who would be sour that they didn't get a ring. I try not to know that type of person for long.