He lost a force that everyone knew was doomed. Kimmel and Short lost the fleet.
It was also a PR issue with MacArthur. In a reality where the Japanese have just clobbered the US Pacific Fleet in its lair and a rolling through SE Asia like a hot knife through butter the one place where Allied troops were giving the Japanese something of a rough time was in the Philippines. We can argue all day about what the reality was but that was the perception at the time, particularly with FDR. MacArthur's staff also played it well. Every press release coming out of the Philippines made it sound like Doug was fighting the Japanese by himself - "MacArthur halts Japanese advance" and "MacArthur counterattacks" stuff like that. The Allies needed a hero and for good or ill he was the best thing going in the late winter and early spring of 1942.