Steel said it
Trying to find where
If you can find it and give a link, that'd be great.
If it's true, that's really a giant pile of "meh" in an otherwise well-done tree and doesn't make any sense to me. Dire Charge is an Epic ability. Flight is a Heroic T5 ability and requires a 31-point investment to get.
Heroic and Epic ability cooldowns shouldn't be linked in anyway, even moreso since Dire Charge and wings/step/flight have two very different uses. Dire Charge is an attack/crowd control ability. Flight is a wings/abundant step ability.
Flight doesn't do damage nor stun anything and Dire Charge makes a pretty poor substitute for wings/step/flight due to it's targetting and associated issues.
This would be like making a sorcerer's T5 Fireball SLA lock out the Dragon Breath epic strike...