For me, this is the kind of "Duhhhh, why didn't I think of that?" idea. I'm sure a challenge will be getting buy-in early enough, since more established code-bases won't make a switch like this casually. But if you're able to prove the value (like Segment) to early-stage products, I'm sure the stickiness and LTV will be super-duper high.
Congrats! Really great idea!