Just the current regime. There was a time when SW, Joe, and Marvel were going full-bore on 4" stuff and the 6" Marvel Legends guys were in real fear that they were being phased out. Then the SW Black 6" came out, Hasbro rediscovered 6" Marvel Legends, and Joe basically died. It shifted the dynamic substantially away from 4" figures.
I'm still holding out hope that Joe will come back in a meaningful way with the next media tie-in, and at this point, I have all the 4" joes I could ever want. I wouldn't mind a 6" Joe line. I don't need every character in another scale. No need to get a 6" Tiger Force. But the main 25 Joes and main 15 named Cobras plus some troop builders would be awesome. After getting a 6" Snake Eyes from that guy in china that upscaled a PoC figure, I would love some big soldiers.