The article's slideshow and my browser (Vivaldi) aren't playing with each other, so I don't see the list. Military development programs tend to be at or just over the edge of what can be done (and the FCC constantly reassigning parts of the spectrum the military made viable to commercial usage and "giving" the military parts of the spectrum not economically usable doesn't help!). So coming up short happens. And then there's idiots riding hobby horses looking a a track to run (e.g. LCSes).
Anyway, reaching back into history ... In the 1930s, the US Army was looking to replace the obsolescent B-10 bomber. Among the competitors were the B-17 and B-18. The Army, in its infinite wisdom, decided that the B-17 was too good, and thereby also too expensive. Somehow, the idea that "too good" meant that anything much less good would quickly become obsolescent or obsolete didn't occur the Army Air Corps people. When, 5 years after the B-18's introduction, WW2 came with the PH attack, Bolos were already obsolescent and being replaced in front-line service by ... surprise, surprise, surprise ... B-17s (with "E" models coming into service!). B-18s got relegated to coastal anti-submarine patrolling (until replaced by much-longer-ranged B-24s) and training. B-18s were almost a total waste.