There's a few interesting things here that I want to point out:
* "A client can request that server push be disabled" This is part an explicit parameter in the client request to a server for anything, https://http2.github.io/http2-spec/#SETTINGS_ENABLE_PUSH.
* "Pushed responses that are cacheable (see [RFC7234], Section 3) can be stored by the client, if it implements an HTTP cache. Pushed responses are considered successfully validated on the origin server (e.g., if the "no-cache" cache response directive is present ([RFC7234], Section 5.2.2)) while the stream identified by the promised stream ID is still open"
Note that pushed content first starts with a PUSH_PROMISE message to the client, which the client can decide on its own volition to reject. Note the spec for a PUSH_PROMISE frame is here, https://http2.github.io/http2-spec/#PUSH_PROMISE and it's extremely small. Even on 2G or dial-up it's by design negligible.
* "Once a client receives a PUSH_PROMISE frame and chooses to accept the pushed response, the client SHOULD NOT issue any requests for the promised response until after the promised stream has closed.
If the client determines, for any reason, that it does not wish to receive the pushed response from the server or if the server takes too long to begin sending the promised response, the client can send a RST_STREAM frame, using either the CANCEL or REFUSED_STREAM code and referencing the pushed stream's identifier. "
Wittingly or otherwise, your message comes across as "everyone on the standards boards are idiots, don't think about anything beyond the valley, and I'm smarter than they are." That's beyond ridiculous. The standard was designed by subject matter experts from right across the world, with interests in web technologies across all sorts of markets, including the developing nations where every single byte is important. There's a lot that has been designed in to the HTTP 2.0 specification to account for that and to explicitly try to improve end user experience under those conditions.
https://http2.github.io/http2-spec/#PushResources
There's a few interesting things here that I want to point out: * "A client can request that server push be disabled" This is part an explicit parameter in the client request to a server for anything, https://http2.github.io/http2-spec/#SETTINGS_ENABLE_PUSH.
* "Pushed responses that are cacheable (see [RFC7234], Section 3) can be stored by the client, if it implements an HTTP cache. Pushed responses are considered successfully validated on the origin server (e.g., if the "no-cache" cache response directive is present ([RFC7234], Section 5.2.2)) while the stream identified by the promised stream ID is still open"
Note that pushed content first starts with a PUSH_PROMISE message to the client, which the client can decide on its own volition to reject. Note the spec for a PUSH_PROMISE frame is here, https://http2.github.io/http2-spec/#PUSH_PROMISE and it's extremely small. Even on 2G or dial-up it's by design negligible.
* "Once a client receives a PUSH_PROMISE frame and chooses to accept the pushed response, the client SHOULD NOT issue any requests for the promised response until after the promised stream has closed.
If the client determines, for any reason, that it does not wish to receive the pushed response from the server or if the server takes too long to begin sending the promised response, the client can send a RST_STREAM frame, using either the CANCEL or REFUSED_STREAM code and referencing the pushed stream's identifier. "
Wittingly or otherwise, your message comes across as "everyone on the standards boards are idiots, don't think about anything beyond the valley, and I'm smarter than they are." That's beyond ridiculous. The standard was designed by subject matter experts from right across the world, with interests in web technologies across all sorts of markets, including the developing nations where every single byte is important. There's a lot that has been designed in to the HTTP 2.0 specification to account for that and to explicitly try to improve end user experience under those conditions.