Nolen,
Yes, it is that easy. Remove the top tube bolt and top hose. Cut the bottom hose in two. Then wiggle the top of the tube back and forth until the lower tab breaks off. It takes about 5 minutes and you can drink a beer while you are doing it. Once it breaks off, pull it out from the top. Install 60 mm of new hose on the tube at your bench,then remove the other half of the PHH at the block and then reinstall the tube. Tighten up the clamps and bolt and you are done. It looks stock, except the lower tab is gone. You don't need it because the lower hose and the upper tab are plenty.