Not chocking an inactive peer

[mcaspi]

[2011-11-09 10:00:51] [uTP](): [µTorrent 3.0 (24.1)]: Send Keepalive

[2011-11-09 10:00:55] [uTP](): [µTorrent 3.0 (24.1)]: Sending 4 bytes of aggregated data

[2011-11-09 10:02:52] [uTP](): [µTorrent 3.0 (24.1)]: Send Keepalive

[2011-11-09 10:02:56] [uTP](): [µTorrent 3.0 (24.1)]: Sending 4 bytes of aggregated data

[2011-11-09 10:04:40] [uTP](): [µTorrent 3.0 (24.1)]: Send Choke

And this was longer than 4 minutes and during the whole session. Why give the slot to a peer who is inactive (probably throttled) for such a long time when there are other peers to unchoke?