Re: Cloud, REST, HTTP, PHP, trendy NoSQL DB de-jour, blah blah, whatever...
Why would anyone, anywhere ever use Oracle as a backend for new web app development? Tying yourself down to a legacy technology stack like that doesn't make much sense. And if you're not writing a new web application (or a intensive but non-time sensitive compute task) then AWS Lambda doesn't make a whole lot of sense.
It doesn't sound like AWS Lambda doesn't make any sense for what you're doing, but that doesn't meant it doesn't make any sense to anyone.