How is this a recent game update? Even if it was Jagex does not care about its own website nor do they read or reply here. They won't do what you ask because it will take up way to much development time and they will have to make sure it works with every type of browser. Like you said you can already use the wiki with updated prices, graphs and all that.
At time of posting 174k accounts online between the 2 games and only 7 on the forums so that should give you a idea why they won't update the website.
22-Nov-2020 22:58:40