Arcane swordsage has an incomplete writeup, so it isn't really a class per se, just a rough idea for one.
A lot of other combos have been acepted around the forums with just as "incomplete" material. If instead of the swordsage, it was an ability to allow wizards to recharge spells as if they were maneuvers in some other splatbook(whitout directly calling it maneuvers of course), it would be brought in every other "rofl casters rule!" discussion, people would be doing builds around it every week, and would be pointed out an option for when you want to make the rest of the group cry.
But since it's in precious ToB, suddenly everybody uses common sense and agrees the writers were drinking something too strong when they wrote that option.
Doubly because the unarmed swordsage, that's just above the arcane swordsage, is just as "incomplete", but nobody has any problem admiting it's there.