I think it's correct that MapPoint will return infinite from Value/0, but it's non correct that performs single operations (Value1/0, Value2/3) etc.
It could only check if the sum of values (0 + 3 +4) is different from 0!

In my previous example

The result is (100+300+500)/(2+4+0), Mappoint could check if (2 + 4+ 0) is different from 0, why it checks 500/0 and then delete that information??