Herro has a higher career assist rate than Ant, 18.3% vs 16.1%; and Herro has a higher career assist/100-possessions than Ant, 5.5 vs 5.0. And those numbers come after Ant has spent more than half his time at PG while Herro has spent 71% of his time at SG, and 6% at SF
when I brought that up before the argument was Ant played with Dame so he didn't get a lot of opportunity to run an offense. But Herro played with Butler (6 assists), Adebayo (5 assists), and Dragic (5.1 assists) his first two seasons. And Butler, Bam, Lowry, Gabe Vincent, and Oladipo the last two seasons. Miami had options for facilitation
I think saying Ant is better than Herro at running an offense is mostly assumption without evidence.