Seedbox providers are taking on the majority of the risk by providing the service. It’s in their interest to keep quiet about it. If they’re served with a legal request, they’ll honor it, if it conforms to their local laws. But so will your ISP, who has no incentive to protect your information.
Also, just my opinion, but I think seedbox operators tend to be people who are doing the same things their customers are.
Not a drama, but I think Brooklyn 99 did a good job parodying that “pro-police no matter what” perspective. It’s also just plain hilarious.