Because it implies that receiving information affects the material world. And communication isn't infallible.

What if you kind of hear me and are pretty sure I said 'positive' but not 100% sure? What if you're 50% sure? What two people are listening and one heard me say 'positive' and one heard 'negative'?

It's hard to imagine a physical process being dependant on something external and near impossible to quantify or measure.