Anthony F. Voellm Google Cloud Performance Engineering Manager @p3rfguy
GCE Load Balancing uses a single IP address, you can point your DNS there and forget about it.
What Anthony's post shows is that this IP address will be able to serve 1 (upwards?) of 1 million requests per second.
This matters because you have control over scaling your backend (design properly, add more instances), whereas you don't have full control over scaling your frontend.
Indeed, a problem we had during Eurovision was that mobile providers (it was a mobile app) would cache the IPs of our frontend Nginx servers, so scaling those wasn't as easy.
So this new GCLB essentially "solves" scaling your frontend. That's something I'd care about ;)
Hope this helps shed some light here!