I always assumed he was taking a cue from actual sports broadcasting and asking Artosis questions for the audience's benefit. Artosis is more analytical and definitely knows his shit, maybe more than any other caster, but I never took Tasteless as someone who wasn't very aware of what was happening.
This is correct and tasteless has said as much in interviews. Anyone who says tasteless doesn't know what he's talking about doesn't know what they're talking about.