A company "accusing" someone of piracy isn't proof. Access to the internet is almost essential these days. If you can prove a person is pirating prosecute them under the law with fines or even incarceration if warranted. But stripping internet access from someone shouldn't be seen as an acceptable punishment for a free citizen anyway.
Whoever owns the network attached to the IP address also shouldn't be responsible for actions of every user. Let's ban an entire company, college, or government institution from the internet because an IP showed up on a list... dumb ruling.
And while we're at it, let's cut the wind off at their property as well, so they can't generate any local wind power!
And definitely take away their fruits and zinc and copper, so they can't build their own massive multi-lemon batteries, which they will otherwise rapidly upscale by growing even more lemons, using the same array of lemon-powered LEDs that also grew that weed, all in an infinite loop of lemon kush! We really can't let that happen.