RESTful sensor and templates

I only recently learnt that a RESTful sensor wasn’t something that could detect a cosy fire to sit in front of while reading a book :roll_eyes::joy:

Anyway, Is there a technical reason why it couldn’t have been made to accept a url with embedded templates? I see that the RESTful Command can be.

My particular reason for asking is that it would then (I think) allow geocoding to be done using MapQuest without the need for a custom component.