I tend to think of weather tech being similar to how fire must have been thought of when humans first started harnessing it. The potential was there to change the world and how humans live in it but many likely viewed it as the devil and that the only humans using it were using it to destroy the world. People fear things that are new and they don't understand. Story as old as time. Hell, that's me with AI.I am far from a cloud seeding expert, but when you read cloud seeding in the context of the above you can usually translate that to "chemtrails". The conspiracy theories are enough to make you clinically insane on what the govt is accused of doing. For true cloud seeding I have not seen one report where it caused catastrophic flooding. Maybe it has happened. I don't know. But this event in TX was due to a land falling tropical system on the west coast of Mexico that moved over TX and stalled out. Think Houston a few years ago when some places got 3ft of rain. True cloud seeding is usually done in drought stricken areas in an attempt to get beneficial rainfall to an area. Once the clouds that have been seeded rain themselves out or dissipate, the seed is out of the air.
So to answer your question, I don't see any reason to criminalize the act. Much less make it a felony. Any time we make a post on our storm team facebook page on something like this it's always a matter of time before the loons come out to "educate" us and calling us shills on the payroll of the govt. Trust me, if we were on the govt payroll we'd have a ton more cameras up right now.