If the addon isn't asking you/telling you to do something, it's safe to assume you don't need to do it. The issues people tend to run into is when people start doing random things on their own because they think they were supposed to for whatever reason.
For IPs, a lot of times at the network-level (like when dealing routing and similar things), it's not asking for an IP address, rather a block of IPs. But again, if you are referring to the IP filtering in the API token, you are better off not using it. The authentication is handled by knowing the API token... so unless you plan on giving that API token out to random people and you want to block them from using it, it's not necessary (and can actually end up causing problems for the reasons mentioned in previous post).