Why Garuda is applied to melee accuracy?

[Ephier]

I think relic weapon is still better than Dreadwyrm even if you lose one weapon damage.

You lose 2 weapon damage, and no it is not better.

WD 6.570
CRIT .211
DET .283

Dreadwyrm: 11.183(crit)+57(int)+13.14(2 extra WD)=81.323 int total

Relic: 10.339(crit)+51(int)+10.188(det)=71.527 int total

I did not even calculate the spell speed into the dreadwyrm book to prove a point. Do not underestimate weapon damage or base stats in the from the upgrade.