Similar to WTH Helper creation in Blueprints, but the other Way around: Instead of creating Helpers via Blueprints, i think it would be really helpful to access Blueprint Inputs via Templates from outside, e.g. any other Automation, on Dashboard etc…
The Inputs made could be e.g. set as Attributes of the Automation.
That would open the Possibilty to make preconfigured Cards for any Blueprint, as any !input, not only User configured Values, but referenced entities, could be templated using the Attribute.
If there would be an Service Call as well, of course it would be even smoother and open up more possibilities.
Edit: Clarification about accessibility