"Old School Striking King" had indeed benefited the most from Edna, but as Black Rose's guild leader, "Perfect Baldhead" was also someone Edna felt grateful to.
Whether or not "Old School Striking King" held real power in Black Rose, every decision she made using the guild's resources necessarily required "Perfect Baldhead's" approval.
How could Edna possibly forget him?
The reason she had examined "Perfect Baldhead's" shield so carefully was that, after giving him her usual blessing, she had asked what else he wanted. Baldhead himself had chosen to strengthen his most beloved shield.
So Edna's praise for this shield came from the heart.
After all, as the Goddess of Magic, strengthening a Divine Artifact essentially meant doing her best to complete its unbalanced laws.
Even if she only eliminated its weakest aspects, especially those with negative effects, that would be enough to turn a top-tier Semi-Divine Artifact into a true Divine Artifact.
Yet with "Perfect Baldhead's" shield, Edna had not immediately known where to begin... There were certainly imbalances in its laws, especially since its creator had been unable to obtain the best materials and had been forced to compensate through other means.
But those very compensatory measures had brought the Divine Artifact's internal structure close to true equilibrium.
Whichever aspect Edna tried to strengthen, it would trigger a chain reaction in the others.
In the end, Edna had carefully replaced, bit by bit, the materials she could substitute that had not been fused into alloys, then used her divine power to stabilize the imbalances caused by those changes.
She had only been able to do even that because the shield was relatively large, and Falan had not had resources to spare like his grandson. There were inevitably a few corners where he had skimped a little on the materials.