No you're not. You are spot on. Galvin and Enders trying to out-talk each other, is so intrusive to the broadcast. They're not calling a hockey game, although maybe their producer is telling them "talk as much as you possibly can!"
I do think Galvin is a very good Sportsman announcer, and Courtney seems very knowledgeable, but I wish NHRA.TV had an option to control the sound channels, like Mute.
I do miss when Alan, Joe and Logan would rib each other during down time, they were very funny. Oh well...