I think this was aimed at botting but the limit won't really affect bots, they will just do longer routes. It might affect people doing AutoIT/AHK scripts but I think they can just do some time randomization to get around it, we'll see I guess. It's a pretty common player tactic in Inferno to reset games until you get manageable champion affixes as many combos aren't beatable right now so I hope they leave this off the table until Inferno gets rebalanced.
Playing: Xenoblade Chronicles DE, Ys IX, God of War
Watching: Lupin, You me and the Apocalypse, Days of Thunder