We realized that many users keep all updates on physical media indefinitely.

This is useless as they are quickly overtaken by the next one and take up space for nothing.

So :

Because the risk of installing an old version of data that has evolved is not a good idea.

Also, when versions are downloaded, a folder is generated on the desktop each time. There is no point in keeping them once the updates have been made and collecting them:

The risk of using the wrong version is even higher than for physical media.