Why middleware applied at blueprint level applies to whole application ?

[Benjamin Rouge]

Hello,

When I'm declaring a middleware with: my_blueprint.register_middleware(func_middleware),
I've found that the middleware applies to the application, not only the blueprint.

So i've searched on the github repo and see that actually when we use blueprint.register_middleware it seems to cal the same method on app level,

I found this strange as if we use blueprint, technically we also need to defined resources / middlewares only at blueprints level.

Should such a feature (to have blueprint scoped middlewares) may be introduced to chalice ?