Have to disagree a bit. I think Gibson basses were at the zenith of their popularity from around 1973 to 1987. The Ripper, Grabber, and G3 did pretty well for awhile. As did the LP Triumph bass. And later on, the Victory abd RD series. Not exactly what you’d call being in vogue maybe. But you’d see plenty of them around. Bass players were more interested in new basses that wandered outside the PB/JB box during that era. At least from what I was seeing.
But it might also be where you were at the time. In the NE-Boston-NYC area where I was playing back then there were a lot of Gibson guitars and basses in sight. Guilds (B-302s and Starfires) and Rics were also popular as was the then brand new Music Man Stingray.
The Grabber had a fairly aggressive sound for a Gibson. It was an unapologetic hard rocker’s bass. Not exactly my cuppa. But it had some very good tones in it if you could get used to the touch required to get the best out of a Gibson. They’re funny basses in that they don’t respond that well to a heavy hand or an overly aggressive playing style. Slam a PB or JB and it growls. Slam on a Gibson and it barks. It’s just the nature of the pickups that Gibson uses.