Hi incr-update-sse authors and all,

I have a question about the current update stream control design in

In the last paragraph of Section 7.6.2, the document writes

"When the client uses the stream control service to stop updates for one or
more resources (Section 8
the ALTO server MUST send a control event (Section 6.3
whose "remove" field has the client-ids of those resources."

As section 7 defines "Update Stream Service", this paragraph means the ALTO
server MUST send a control event in the update stream to notify the client
the status of a stream control service request. Why do we want to use a
different channel to return the output? Why not return this control event
from the response of update stream control service? I feel it will
introduce the unnecessary complexity.

Can anyone of authors elaborate the reason for this design?

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