I agree it's lame. Like you, though, I did the math and a DAF was still far and away the best way to structure my gifting. The ability to gift appreciated securities (even to charities that won't take securities directly) and to smooth over multiple years is huge.
I don't think there's much pressure for DAFs to reduce their fees because the benefits are so ridiculously good. Also, in the grand scheme of things, it's still a pretty niche market -- Vanguard Charitable, for instance, has $7.2 billion in aggregate investments, while Vanguard itself has $4.5 trillion AUM.