In the recent Nostalgia Critic episode about Fox Kids, he mentions how the supporting cast in Taz-Mania were so well-spoken and talky, thinking it's ironic for a show about the Tasmanian Devil. I feel it would have been a bigger deal if the star was the Road Runner.
But then I realized, in the cartoons where Wile E. Coyote does talk, he is well-spoken as well.
Wile E. Coyote (the talkative version) would have totally fit in as a character on Taz-Mania.
And I guess to further address the talkativeness of the series, in the episode where Taz fills in for Ralph Wolf, Sam Sheepdog gets more dialogue than he did in the typical classic Wolf and Sheepdog shorts. From what I remember, he doesn't get any dialogue during the parts where he's clocked in (like in the classics), but the episode gives the two both a lunch break and a coffee break sequence, allowing for more dialogue. And in A Sheep in the Deep, the one classic Wolf and Sheepdog short to include a lunch break sequence, neither character talks during that scene.