Why has Photoshop Beta's toolbar been changed to revert to default instead of remembering last tools used whenever Photoshop is re-launched?

Why has Photoshop Beta's toolbar been changed to revert to default instead of remembering last tools used whenever Photoshop is re-launched? It looks to me like another example of some university graduate deciding to change something in Photoshop just for the sake of it. I've looked in the tools settings in Preferences, and can't find anything that allows me to retain the tools as I left them. It's infuriating now to have to keep going through the tools on the toolbar and re-setting them to what I need most often. This problem (and also some infantile stylistic changes to the toolbar - again born of the “let’s find something else we can change” mentality) only afflicts Photoshop Beta. The release version of Photoshop is not affected by this problem (not yet anyway).