The counter argument to the "omniscience/omnipotence contradiction" argument is that such a being would not be bound by the same laws we are, or that the omniscience is only a reflection down on our level. In other words, a being that knew everything but existed outside of time would have no problems with the contradiction, because the key element of the contradiction is time.
You are correct in as much as your assertion that gods with specific attributes can be disproven if we can test those attributes, however in order to test omniscience we need to be omniscient ourselves. The same applies to omnipotence and omnipresence. So gods are adhered with the exact qualities we would need in order to test they had the qualities.
There is no way to disprove the individual characteristics on their own. Hence my agnosticism.
You are correct in as much as your assertion that gods with specific attributes can be disproven if we can test those attributes, however in order to test omniscience we need to be omniscient ourselves. The same applies to omnipotence and omnipresence. So gods are adhered with the exact qualities we would need in order to test they had the qualities.
There is no way to disprove the individual characteristics on their own. Hence my agnosticism.