I don't know what you mean by an earth amulet. If you are referring to a crystal coin (E2S2), then yes but that still requires someone to have S2 to forge it in the first place. Ditto for the Starshine Skullcap.
CBM chose to take a page from Squirrelloid's book (specifically, his
Order of the Black Rose mod), and gave Ulm more army-wide buffs. That's a perfectly valid route to go and Squirrelloid's mod is very impressive. However, CBM hasn't taken things as far as the Order of the Black Rose so there is still a few pain points that can be addressed. I was merely offering an example of how I chose to address them.
If you feel like my changes are excessive, that's fine. I present them so they can be used as a basis for conversation about how to improve MA Ulm. Also, so they can be sampled from a la carte.