Aside from that Noble Phantasm, as long as they were Servants, there was practically no chance of defeating Goetia.
Just as Goetia had said, the only thing that could stop it was King Solomon's great deeds during his lifetime!
So no matter how many Servants Chaldea brought out, they might not be able to stand against Goetia.
Don't be fooled by how Goetia had been used as a stepping stone so many times in later Lostbelts. The people using Goetia as a stepping stone were anything but ordinary. Karna had integrated Indian divinity, while Zeus's side had even defeated the giant god Altera.
None of them were existences that could be judged by common sense.
Remilia Scarlet: "Is that Goetia really that strong?"
Haibara Ai: "Very strong. You probably couldn't beat it..."
Remilia Scarlet: "Now that you say that, I'm fired up. Count me in for the raid. Let's see how I stab that thing a hundred times with Gungnir! I'll show it how formidable the Scarlet Clan truly is!"
Loki: "Incinerating Humanity... That guy sounds pretty interesting. Count me in too!"
Ais Wallenstein: "If Loki goes, I'll go too..."
Loki: "Wuwuwuwuwu... As expected of my Ais, she really does care about me..."
Ais Wallenstein: "If Loki goes, she might not do anything useful and end up dragging everyone down..."
Loki: "..."
What was she supposed to do when she couldn't even argue back...
Takamachi Nanoha: "Count me in! Last time, that guy completely disregarded everyone else's lives and dropped the light ring right down on us. I absolutely cannot forgive that! This time, I'll make that guy reflect properly!"
Yagami Hayate: "What if it refuses to reflect no matter what?"
Takamachi Nanoha: "Then I'll blast it until it agrees to reflect!"
Fate Testarossa: "..."
She remembered that Friendship Cannon