“Well, there are only two highly controlled stocks”
That are officially known about.
I would not be surprised if other governments, or even our own government, had a secret stockpile that you’d need a top level security clearance to even know about. Smallpox is one of the primary bioweapons that all countries with bioweapon programs studied, after all.
As much as I would hope that your cynicism is misplaced, it’s probably more realistic to suspect that there are ‘dark’ locations for secret stashes.
The continued insistence by researchers to continue to work with that virus would make me wonder that it might ‘grow legs’ if the destruct order came.