Kind of not sure if this is actually just a really really weird pro-IOF propaganda thing. As it says that only 25% of US interceptors worked, while also that around 90% of IOF ones did. Given the site, seems like IOF government propaganda machine is doing the normal uber-nationalist thing. Downplaying the effectiveness of even diehard supporting nations as "cute but dumb" and the nationalist hawks as "the real fighters of true justice" or whatever.
Though I also would believe that even with it being Israel the weapons are being supplied to, would still not be the "full version" as to not allow enemies to know the real effectiveness of (in this case) the US tech. Pretty sure that most high-tech weapons that are sold outside the originating nations are very different than the ones said nation actually fields. Or at least gimped in such ways that allow the "full versions" to take out the gimped ones. Then again, I also imagine that Israel has many more spies inside the US military and all companies that make up the US's military industrial complex. Which means they also have the shit needed to make their own copies that have the extra benefit of constant data and testing to make a better version with real-world shit
I am not "pro-USA #1 ra ra ra!!!" and very much sure that the "effectiveness of our weapons are generally very inflated. Just like all massive private/for-profit weapons manufacturing nations do. Just finding the propaganda machines of two deeply involved allies painting the other as "lesser" to be both odd to actually see, and kind of hilarious at the same time.