The Action of Cancel Order essentially blocks the order from being made as it automatically cancels it. The language is slightly different and doesn't necessarily say Block for this app. There are lots of different Fraud feature apps that you can look into to see if you prefer them here.
No, its not the language at all.
If an order is truly blocked... there is no order to cancel!
So, What you meant to say was...
"Once Shopify collects its fees, the app then cancels the order using the filters provided"
There are some other apps you can look into for this if the Fraud Filter app doesn't resonate with you on this. They are created by developers and will generally have a fee associated with them.
Hopefully, this can help and is what you're looking for.