popping pollen sacs is bad. A lone nanner you can pluck and it won't produce much pollen even if you miss it. A pollen sac can pollinate 100s if not 1000s of calyxes. Sometimes herms don't dump pollen like a true male plant, but it's got the full anatomy to produce it, unlike the lone nanners.
Burn it.
you could try plucking and plcuking and pluckgin until the end. you'll have to scour the plant each day looking for new growth -- getting it while it's green is better than mature, open and yellow. I'd do this stuff at the end of the day when you can leave the tent and not come back -- this way you wash your hands , shower, change clothes before the next time you go back in there.
the only hope is that some temporary stressed caused what you saw -- that wouldn't spread as long as the source of stress was fixed. Like a ray of light somehow hitting one spot due to a malfunctioning light labyrinth. But if it is herming out while perfectly happy and healhty, that's a trash-dick plant you shoujdl throw out.
Why you might keep it:
lone plants with lots of time invested -- you could finish this up and make bubble hash. A non solvent or pressure method of extraction (sieve in this case) would work well and be a quality outcome.
any context where it can't get worse, already invested a lot, and want "something" out of it. bubble hash is the way with seeded plants. yield and potency might be a bit lower, but it'll taste fine and still be stronger than normal flower.