Yes they do, mainly because it’s the law. That it’s a misguided law is open for debate, but I don’t believe there is any state in the world that doesn’t monitor and control tele-communications (internet is regulated as tele-communications WW).
> ... access to this data is so accessible remotely that physically visiting an internet provider’s premises is no longer required for government agencies.
They were expecting government agents to have to physically visit the ISP's offices? Were they perhaps going to get their data on a floppy disk?