Except it does not unambiguously signify division; the Wiki article even includes photographic evidence of a form where it is a variant minus sign.
My calculator does have +, −, ÷, and ×, though.
It’s also fairly easy to mistake for a + sign, at a glance.
Although, / is fairly easy to mistake for an italicized 1, I, l, or |, so I’m not sure that’s the biggest advantage.