i'd love to agree if they used it more often in the tv series. past ep 13, i can't remember the macross using the pinpoint.
random thought - couldve conserved energy in ep 36 and wasted it on a final dedalus attack on kamjin, or maybe not. . .
The pin point barrier system was shown in other instances, including the final battle with Bodolzaa's fleet in Episode 27 "Love Drifts Away" (specifically during the SDF-1's penetration of Boldolzaa's mothership).
An upgraded version, no less.
If you watch, there's not 3, but 4 barrier disks in use during the "Macross attack". One per cannnon boom, plus one on the Daedalus and one on the Prometheus.