BaldieMaker,
Your buddy might not really be 'burnt'; he might have a goldmine - time will tell.
I, too bought some Gardens Wave semen before he got a Docility epd - though I knew the potential was there(his sire, Highmark, had a -17 Doc at the time). I've used all that semen, and won't buy any more until I see how his daughters perform - but right now, I really like them, and thus far, I can't tell any difference, disposition-wise, from calves the same age sired by 6I6, NBPT D806, or our cleanup sire(Connealy Focus 188x878) who throws really nice dispositions. In a year or two, if this current crop of Wave heifers don't give me any problems, I'll go back and use him again. High $EN, moderate milk, high Marb, high REA, high $W, high $B - a good combination for making cows for my purposes, even if WW/YW are below breed average - and, he's homozygous for all tenderness gene markers.
My Wave daughters are really nice - but the steers don't look like much right now - but the steers are all out of first-calf heifers, so I expected a little less performance on them from the outset.
AAA is not the only breed association that has developed Docility epds. Seems like the Limousin, and maybe the Gelbvieh folks have also developed one; there may be others - these are all breeds that have had a reputation - whether deserved or not - for temperament issues in some lines, but bad temperament is not limited to Angus and Limousin.