I did not say that the freespawns are supposed to have disadvantages. I said that the freespawns themselves are a disadvantage of the LA R'lyeh nation.
LE Ermor is a complete different thing. LE Ermor is easy to control in comparission. No upkeep, no supplies needed for your freespawns. You can take as many as you want to make an army or just leave them where they are, its an option for you not a must.
I did not mean to imply that they are the same. I only used Ermor as an example of another nation I do not choose to play. I'm happy to live with the fact that some of the nations do not fit into my prefered playstyle, and I don't see the need to demand that they be changed so they do.
Why would you think that the freespawn of LA R'Lyeh are supposed to be a disadvantage when they are effectively the only troops you can afford to field?