Earlier Google used to give preference to xml sitemap ...so at last it has given equal importance to html sitemap.
taht's really nice. some people do not know how to build a xml sitemap but now they will create it easily
Matt says its better to do an HTML sitemap first because it serves users as well as search engines. This isn't a new policy, and doesn't in any way imply that you shouldn't do an XML sitemap. He also says right at the beginning of the video that both kinds of sitemaps are helpful in getting your site crawled.