I think the point is that his alternatives don't guarantee 100% uptime either so the whole thing just comes off as some sort of tantrum.
him: I needed to deploy but Github was down! Screw
them! I'm going hosting company X instead.
me: Does hosting company X guarantee that they will
never be down when you want to deploy?
him: ...
At least that's how it comes off to me. If those other hosting companies really do provide him with what he needs better than Github does, then more power to him, but I seriously doubt that they do at the price point they have set.
Even if they do "guarantee" it, what happens if they fail to meet their guarantee? Most likely they'll credit him with a refund of his hosting fees for the downtime, or if he's really lucky some small multiple of it...
Words are cheap, especially in the world of typical SLAs.
