7th gen was the first Accord V6 to get a manual tranny at all...;point blank end of argument...anyone who says different doesn't know what they are talking about.
As for why...this has been a debate for a long time but basically it all boils down to the idea that the Accord was never meant as a sports car but more as a family car so it was seen as an option no one would buy with the V6.
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"I'll keep my money, guns and freedom. You can keep the "Change."