Earth has been iceless before of course, and I've heard people claim its not a problem for it to happen again.
But if only this heating had occured slowly over a period of ~45 million years, nobody would have panicked. We'd adapt. Fauna and flora would adapt. We'd not even notice the ice caps melting.
Cortana worked damn well for a while. Feature rich, able to understand me better than googles assistant. And despite this they found no way to earn money on it and just gave up. Not by just disconnecting her, but by slowly stripping her of every useful feature.
I don't trust copilot to stay around. They gonna try a few half hearted attempts at capitalize it, then just give up. Like they did with Cortana.