You have me doing my homework today Jason!
Turns out it’s not as simple as I alluded to. With the filters it’s more similar to api query filters; where you need to specify a specific value or criteria. Like in the example provided where it will only send the webhook on products that have a price greater than 10
“variants.price:>=10.00”
You can still use that to limit what you receive (ie products with no images don’t get sent, or ignore products that aren’t published to the online store, etc)
You can also limit the data your app needs to parse by using only the include fields that are relevant.
As for specific sending on changes to predetermined fields, that’s still in the works