I missed this change in the initial excitement, but seeing it now, I think it's too much, taken with all the other changes. Taunt is an incredibly powerful tool for aggro management; you basically push one button, and that target and any targets near it is yours, now and forever. This is why the live devs originally reduced it to 5 targets in the first place, and I agree with their rationale. I think letting that affect up to 10 targets is overkill.