Garthanos
Arcadian Knight
Yup, because they're not particularly mechanically strong compared to other themes even if they themselves are better than nothing.
Templar's power swaps are solid, but they're not extraordinary - they don't really scale. And Templar gives nothing past the decent encounter option if you don't take them. Not even an implement option for use with the implement powers. All the modern ones give some sort of 1st/5th/10th option for free on top of the encounter power.
Wild Hunt doesn't even give an encounter attack power for free, its 1st/5th level options are corner-case. The 10th level option is okay, but not great. And the power swaps are mostly bad.
Oh I do not doubt you. I have found in other arenas of character design I find I rarely ever pick anything that is purple, but themes seem to be me looking for something else.
AND
i do wonder about what explicitly can be improved on the red ones of any stripe though...
that is usually what goes through my mind when I read the charop analysis of anything.