Been doing that forever. I usually wait until higher percents so it'll KO even with good DI on bigger stages, but this is partially because I'm not good at frame perfect turnaround down-B when the DI behind (i have more time at higher%). With that said just yolo'ing it every now and then will net somr quick kills. Those who aren't expecting it are often DI'ing away and about to techroll away, so they'll DI the wizkick horribly and die.
Once they start anticipating the wizkick and survival DI'ing after dthrow you can mix in dtilt instead which will net you free fairs/uairs to setup easy edgeguards.