Eight battleships lost and several more damaged would overturn the fleet mathematics that protected Germany's northern coast in this scenario. The surviving heavy units would probably retreat to Danzig rather than remain near the North Sea. That move lengthens German response time. It also removes the option of using the Kiel Canal to bring heavy ships against a British entry from the North Sea side. Britain might not need a full invasion because credible raids alone could force Germany to divert troops from the land war.
Chapter · 1:36:17-1:42:47
A crippled High Seas Fleet opens the Baltic problem
Heavy losses at Wilhelmshaven could force German capital ships toward Danzig and let the Royal Navy threaten the Baltic supply route with raids, cruisers, or an amphibious feint.