Some vets I know tend to do the opposite. There is a slightly elevated risk of a flare reaction from some biologics like Pro Stride. So they are more likely to give NSAIDs than using steroid and/or HA.
The price tag is not small. If you are doing multiple joints, you might want to ask your vet how much that is going to cost before you use Pro Stride everywhere. A friend of mine recently had quite a sticker shock. She was kind of expecting more of an IRAP type cost, one big fee but multiple injections out of one blood collection. Not so much with Pro Stride. Both are more expensive than steroid. But of course you should also only put in so much steroid in one go.
I don’t personally know anyone who has used it in the hocks. But also most of the hock cases I’m closely familiar with doesn’t really have advanced disease. Maybe mild OA or just inflammation without really any noticeable changes. I have seen it used in stifles and coffin joints with some success. So, the vets tend to go with triamcinolone (usually avoiding Depo Medrol here due to it being unkind to cartilage over time).