I doubt they've been killed as invasive: they're not the target of the laws: green iguanas are. However, I would surmise that someone watches his channel and realized how easy they would be to take. They're each worth $500+, so I'll bet they've been sold already.
I am just super thrilled that they both are safe and sound. To find Drogo sunbathing by the pool had me laughing typical iguana behavior. Khaleesi walking down the street she could have gotten hurt badly. Like Tyler said tighten up security 24/7/365. Yuppers too many people knowcwhere you live DUDE.