If I had to guess and put them in the best light possible, I'd say:
"Hey, have you thought about how we wanted Tribes fights to be really up close and personal? More so than the last two games?"
"Yeah."
"Well, I was thinking. The mine disc sortof ruins that goal. It ends the close up fights really fast, and scares people from getting in one another's face."
"Yeah, but we need it."
"Well, I'm not so sure about that. I think it'll work fine without it, and here's why..."
If I wanted to paint them in a flightly, short-mannered fashion, I imagine it was something a little like this:
"Mine discing?"
"Don't want it. Chuck it."
"Why?"
*shrugs* "Pisses off too many people, and scares customers away from the game."
If I wanted to paint them in a third cautious way:
"So what about mine discing?"
"We'll put the subject on the backburner until we've decided whether or not we need it."
Months later...
"I don't think we'll need the mine disc."
"Yeah, you're right. Plus, it puts a lot of power in the hands of a light, scares off newbies, and ruins our goal of getting people to fight close to one another."
"Good. So we've decided it has been cut."
"Yep."