Well, the 24h reconnect common with DSL is handled more or less gracefully (probably with an hour of bad performance or so). Network outages of a few hours or so aren't. After that aMule usually sits dumb and disconnected, even if network is back again.
(At least this is how I remember it from my DSL times, may they rest in pieces.

)
But a GonoszTopi said, this is not trivial, and thus not in 2.3 (unless somebody comes up with a great patch...).