Seems pretty likely when known big men like Junjo and George Phang were around in the early 80's. I'd be interested to know more about the situation in the 70's and up to the violence of the 1980 election though.
Yesterday I was reading Manzie's excellent sleeve notes to the B+F Ja Man dub CD, in which he talks about Channel One being in the heart of the ghetto, so in touch with the people, but also geographically situated so that he could get there without having to cross any "borders". These borders between JLP and PNP areas are also described in more detail in P Edwards' Trench Town book. There's also the famous tale about the Overnight Players LP being recorded when the musicians were too scared to leave the studio because it had all kicked off outside.
Unsurprisingly, I can't find any reference to the Hookims' political leanings, and it seems that songs supporting both sides (or their areas) were recorded at Maxfield Avenue. It seems as though the militancy was mainly directed against social injustice and violence, with some of the anti-war anthems such as Leroy Smart's Ballistic Affair being recorded there.
When I was there the studio was in a state of disrepair and appeared empty, but it wasn't a place to hang about too long unless you had business being there.