Unholy Might Minion Mastery Question

Hello, now that unholy might converts all physical to chaos - I was wondering what the point of unholy might is as a minion mastery. The application of converting all damage to chaos for 4 seconds at a 25% chance seems like a detriment to most builds.

Could this mastery have been meant to give chaotic might instead?

just another classic GGG unnecessary change that isn't fully thought out.

Although unholy might was never really good for minions even with the old one. For 99% of minion builds (before poison srs), you were running Brutality or a full elemental build.