You also get a RED indicator on the app that shows which camera is low on battery. This is obvious and not easy to miss. Sure an email and/or a text would be nice for notifications. However, Blink is well known for NOT customizing it’s software. Especially when only a few people ask for one particular thing.
Myself, I quit asking for Blink to do something or change something because after a year of being on this community forum dang near very day, I know better. I would venture a guess less than 5% of additional features/benefits that have been asked for through hundreds of users have been implemented. That my friends is listening to your customers, but doing very little about it.