Losing Goeben might delay Ottoman entry rather than keep the empire neutral for the whole war. Entry could slip as late as 1916, leaving more time for Ottoman defences to evolve and for Allied planning. A later intervention would begin from an agreed army-and-navy plan instead of the historical sequence of a rushed naval attempt followed by land operations. Delaying or avoiding Gallipoli could also keep Churchill and perhaps Fisher in Admiralty office longer, changing British naval leadership as well as the campaign itself.
Notable Point · 1:15:40-1:17:52
Delayed Ottoman entry gives the Allies planning time
If the Ottomans entered the war much later, the Allies could answer with an existing joint plan rather than improvising a naval attack and hurried landing.