Seems to be a bit of marketing.
Everything they offer, every place else does too. and if they don't, if you have root access, you can install it yourself.
Nearly everything is a cloud/virtual box these days, likely hosted at a big-3 cloud provider or other teri1 data center. upload is upload.
caching? redis, memcache, zend, xcache, etc are all available to anyway. cloudflare too
cdn, same, put your static files on s3 or r2 or maxcdn, etc etc or anywhere else.
Perhaps it makes it 'easier' out of the box, but nothing i mentioned is hard - just needs root access and some linux commands.