It sounds like a good addition for the http binding. I’m not certain it is feasible to implement though. In the mean time you can consolidate them all into a single Rule and apply Design Pattern: Associated Items and/or Design Pattern: Encoding and Accessing Values in Rules Approach 3. Basically use sendHttpGetRequest and the name of the Item to build the URL to query.
It might require creation of proxy Switch Items so you would have to decide whether 2x unbound items is less onerous to repeating the http binding config over and over.