To be fair, I do agree the connectivity check should not be there. It should just let you connect to the network, and if it doesn't have internet, then so be it. You'll figure that out the second you try to load something. Plus, it makes it really annoying to set up a new Wi-Fi router or something without internet because you have to disable data and then turn on Wi-Fi and connect to the network to force it to stay on the network and not switch over to mobile data.