Thanks Droxx - although interestingly enough most of this refers to planes of power, which is the first expansion I remember to have shorter summon intervals
[You must be logged in to view images. Log in or Register.] But that is also hinted at by some comments in the links you provided.
Either way - I'd say there's enough evidence in this thread to support the bug report, what the devs make of it is up to them. If the server is not meant to be true classic, but rather some kind of "balanced classic" - then so be it.
Slozem