One of the reasons I do not use Edge / Chrome / mainstream browsers is because I do not want to fight with the browser to stop all the extraneous stuff they push. Things like: content I don't want in the new tab page.
Currently you can set a new tab to open the homepage, and you can set the homepage to be whatever you want. So you can have what you are asking for without the Orion team having to do anything and without Orion users having to work around your ideal new tab content.