SUBSCRIPTION_BILLING_ATTEMPTS_FAILURE customer email notification

[fs21]

Hello,

Shopify sends many automatic emails to the customer, but does not send an email when a subscription billing attempt fails. Is it common practice for apps to send emails on behalf of merchants in cases like these? 

It would seem strange to get an email from an app domain saying  "credit card billing failed for store X", it seems like it would make more sense for it to come from Shopify or a merchant email domain.

Just looking for some clarity here. 

Thanks