Acceleration support not providing 40% more damage with 'Feathered Fletching' notable

The Acceleration Support gem states 'Supported skills have 40% more projectile speed.'

The passive notable 'Feathered Fletching' states 'Increases and reductions to Projectile Speed also apply to Damage with Bows.'

Socketing acceleration into lightning arrow does not increase the damage at all with this notable selected. Unless I'm misunderstanding the interaction, should this not apply a 40% more damage multiplier to Lightning Arrow (or whatever skill you have supported by this gem with the above passive)?

Bug Report ID: #1781280732

Well it's not 40% increased projectile speed.

It's 40% more projectile speed.

'Increases and reductions to Projectile Speed also apply to Damage with Bows.'

Well I assumed that '40% more projectile speed' was an increase, though with the way they differentiate between more/less and increased/decreased I see what you mean, so I guess it's safe to assume it's working as intended.