Anyone who wants CC to download with Gallery Sims obviously doesn't remember what the Exchange could be like. It wasn't just a dumpster fire. It was a dumpster fire in a dumpster full of barrels of nuclear waste that had rolled into the Cuyahoga River and set it on fire too.
Also, saving sims to your Library doesn't back them up, it just puts a copy in your Tray. Uploading them to the Gallery backs them up. Soi unless you regularly back up your sims 4 folder, preferably to a USB stick or external drive, they aren't backed up. EA should really give us te option of marking stuff on the Gallery as private.
