Re: Um, just NO!
If you have no recovery media, then you should be able to download to a USB Stick/drive using ANY machine or OS. A built in Cloud Recovery is nonsense.
The problem is that your approach requires another machine and/or a helpful third party - who probably has to download the very thing you're after.
The 'cloudy' approach (which is just marketing speak for having the image on a defined server somewhere) makes it independent from anyone other than the need for a decent connection. That doesn't remove the USB/external media option, it just gives you an extra one.
Apple has been doing this for ages - MacOS emergency boot facilities contain an option to reload the OS via a WiFi link.