Of course philosophy has value but I too am quite disappointed how easily it enables very basic flawed assumptions to exist over eons even in what would be considered high academic levels. To me it feels like the equivalent of physicists today being divided on whether the earth revolves around the sun or vice versa.
Personally I think both Searle and Dennet are essentially dualists (though they'd both vehemently deny it), but each practicing a different form of dualism: Searle promoting some mysterious consciousness as some ghost in the machine, and Dennet protecting physicalism which in my book negates any subject from existing, in complete contradiction to the reality that any object (physical or otherwise) will always be just a model in someone's experience. I see Dennet as trying to squash dualism by giving the model more validity than the very real experience from which it arises, where the better path to eliminate dualism would be to try and get to the source of this division.