Rules are (were?) slowly changing. They are getting banned in some places like California and British Columbia, though that BC link highlights even with "bans," there are many loopholes in much of the legislation. While it is typically banned for private consumers, professional post control companies and anything deemed an "essential service" is allowed to use them, in amounts I'm sure dwarf what home use would use.

Essentially every animal rescue lobbies for bans, and things like Flaco having poisoning being at least somewhat responsible for his death brings public attention to the unintended effects. Hopefully more and more people will get on board and we will eventually be rid of them.