She said it's a rhetorical question, but I'll answer anyway: Yes, it's perfectly acceptable to get excited over the consistency of a dog's poop. In fact it's great.
Danica Patrick is referring to her adorable 4-month-old miniature Siberian husky Dallas Stenhouse, who has her own Twitter account. Dallas has had some digestive issues and appears to have a specialized bowl designed to slow the pace of her eating, which explains Patrick's enthusiasm for the solid discharge.
Am I really spending another paragraph on this? Sure, because I love dogs, and because as every adult knows, worrying about the nature of your offspring's (furry or non) poop is a part of life.