Even if so... If this is as effective and safe as it seems then it will get leaked to the public or reversed engineered and then made public. The original paper's abstract says "this active exopolysaccharide is ubiquitous among the genus Spongiibacter" which means it's accessible.
The repression of such a boon could not last long. History has proven the human spirit is nothing if not irrepressible. There are plenty of people capable and motivated enough to run what little information we already have all the way to a consistent home manufacturing solution. Its publication and distribution is another game entirely but I'd bet on the public there as well.
Take a look at the Four Thieves Vinegar Collective for some tangible encouragement. Knowledge is power. Together we can be powerful enough to create what we need to survive. Government buy-in encouraged but optional.
"Every accusation is a confession" is not a new trend. Right-wing hysteria has always been the Regressivist response to their own fascist fantasies. They scream about the perceived, feared, and fabricated sins of the Left because they're terrified of being exposed as the evil people they are. Always have been. Always will be.
They obsess over "family values" because their values are empty shells animated by dogma, delusion, and psychopathy.
They obsess over purity culture because they are sexually monstrous (or, on the opposite end of the spectrum, aren't but have been convinced they are).
They obsess over race and minority success because they fear the inevitable: becoming the minority.
All covered in veneers of affluence meant to echo Aristocracy and stuffed with petty but insatiable greed for control over every perceived threat. That fear and insecurity manifests as an obsession with power and admiration for those who wield power selfishly without punishment.
They willed their own nightmare into existence because their worst nightmare and their wettest dream spawn from the same putrid muck. The only difference those broken self-dehumanizing narcissists see between Heaven and Hell is who cracks the whip.