I agree, I've always been frustrated with Taronga's very abnormal breeding intervals, and moving some of their cows to the US would allow them to breed much more consistently assuming they're placed with a proven/capable breeding bull.
To be honest, importing Pak Boon and Thong Dee (or any of the Australian breeding cows) instead of Ongard would've been so much more beneficial to the population. He's just sitting at Miami, wasting away with an older bull and post-repro cow. Now if a few of the girls had been imported instead, the very valuable Dahlip could've become a father again!