Point #2 was moot, as the granting of terms relied on NPO's acceptance of term #1. I don't know how quick you are with a calculator, but I find it hard to believe that a specific, or even close-to-ballpark figure could have been calculated in such a short time. Alternatively, had NPO so desired, they could have calculated the ballpark themselves. As you later state however, NPO has a massive amount of income and can more than afford the reps of damage done to a 50 some-odd member alliance.
You're assuming A LOT with these calculations. Comparing your "estimate" of the tech economy within NPO with their current amount of tech (I'm going by what the alliance info screen shows as of this post, not at the time of the negotiations, as I don't have that info), which by the way is roughly 1,029,678, shows that the NPO as an alliance has only been purchasing tech internally, with no external deals, and no tech recieved as part of reps, for about 13.75 months. So it would seem that your calculations aren't even close to correct, and NPO would stand to "lose" much much less than you have estimated as a result of not being able to deal tech.
I should also point out that, as requested by NPO, the moratorium on tech deals would not last the entire 60 days, but only as long as the reps due to OV were outstanding. As I mentioned before, the reps due would be a paltry sum for an alliance with an economy the size of NPO. Odds are very good that they could knock the reps out with one 10-day aid cycle.