Wanting input on inputs

As you already know, when talking about feedback in general you should use input.
When talking about input pins or connectors, you should use inputs (every one of them is a concrete input).

In my opinion, the use of inputs related to feedback denote dispersion/variety in the responses, as if every input was so singular that they could be told apart from each other, a case similar to the use of peoples, or when you have many fishes on the table, instead of having fish (in general) on the table.

I think in the case of your example, it would mean that the organization took care of every single one of the inputs (or at least that's the idea they are trying to sell), contrary to having taken care of customers' input, where this input would have probably been taken care in a more general fashion.