To be expected. SA's quicks are better bowlers than Harris.I have seen him in 14 test, (3 vs IND, 5 vs ENG, 6 vs AUS). In which in SA's 5-man attack where the quicks 90% excpet of Chennai, Lord's & a on 50/50 basis vs AUS - the quicks have had the opposition batting-lineups under control.
His role has in most cases has been to block up & end given he is an accurate bowler. But too many times batsmen give him wickets, i remember KP & Symonds playing some awful shots to get out to him & a few others as well.
Harris has a role in the South Africa side, and he does it well because he's a decent bowler. Given the right conditions he can pose problems, but if opposition batsmen want to have brain explosions and gift him wickets then that's up to them.
Uppercut put it quite nicely actually. If Warne is bowling beautifully, getting a bit of drift, landing it on a perfect length 6 balls out of 6 and ripping it, no batsman in his right mind would dream of giving him the charge. It's the same with any bowler, you play the ball and not the man.