I don't know the answer, but cost vs benefit certainly plays a role.
That type of goggle costs what, $2000? And it is designed for intermittent use, like hours each week, not endless nights. Adding a version that operates every night for years may be too costly.
Slapping a costly (thousands?) extra onto cameras that already cost hundreds probably won't sell for widespread use very well. You can add a bunch of IR illuminators for the cost of 'night vision' tech.
Not to mention things like ITAR compliance restrict moving those products overseas (where most security cameras are made.)
BTW, I had a 1st gen 'starlight' NV monocle that I used for pig hunting several years ago. It was good for seeing in pitch blackness, but it wasn't very detailed even at close range. Pig = bright green blob running toward you.
Surveillance operators usually need/want visual resolution of detail. If they just want to see bright blobs, they'll pick Thermal.