The page is wider, but no wider than most popular web sites like Youtube and Facbook. The extra width will be needed for other pages on the site.
If it's too wide for your screen, you can use your browser's zoom feature to make it smaller. You can find it in Firefox under the View menu.
Yikes! Needs a LOT of shrinking to be viewable! I still don't have the whole width, but one more zoom out and the font is pixelated & too small to read (firefox). This will take some getting used to...