No, it explains how the purchaser of the patent can get the inventor to go along with their offensive patent lawsuit, which is necessary BECAUSE the inventor maintains veto power. If that weren't the case, the inventor would have no say in the matter.
But what's the point of the "no consideration" bit? What's the point of two parties agreeing that they won't make a new deal later, when they can anyway?
They just have to say if pressed that there was no threat or other consideration, and that they agreed to let the other party use their patent offensively. Then collect their totally unrelated consulting fee.