I'm absolutely certain. Though it may have had something to do with the fact that my friend and I killed the Scourge eight times in a row when we fought it. Also it's worth mentioning that I was hosting the world, and the ore wasn't visible to me until I restarted the server.
Also, regarding the difficulty of that fight; I can't give too accurate an assessment, other than to say what we were using. I had the Bellerose (Godly modifier) and Thorium Armor, from the Thorium mod. Bellerose is roughly equal to a Falcon Blade, I would say, but launches a piercing projectile every fourth swing. Thorium armor is about silver tier in strength, and gives...well, actually the same bonuses as Victide, but at half the strength, and a bonus to critical instead of the in-water bonuses. After boss farming, I switched to the Victide armor, which has (if I remember right) four less defence, but actually caused me to take about 10 less damage on average, and deal a little more.
My friend was wearing full Crimson Armor, and an Arkhalis. I'm not sure what modifier he had. Between us, we were able to take out each of the eight we summoned quite quickly. All in all, I'd say it only took a couple minutes for us to take out all eight, without trouble. I recall at one point getting juggled along the entire length of the worm and not needing to heal afterwards, and although we both had already farmed up full 400HP, I'm not sure I would have needed to even with half that base.