Everyone makes the mod they want to play. That is how it is, and that is how it should be.
I'm totally agree with that , always helping with those who want to vary something from my mods and don't know how , like i did for you . All i'm saying is that mods are what they are and if you , or anyone else , want a different thing , you can do it ... by yourself , i don't mind to help , but by yourself
What I will say is that your mods are unique in that each one is not a single entity. It's a collection of a whole bunch of things, loosely grouped by type. So your "Units" mod adds 8 units, not just 1.
Your modmod's are *not* modmods. They're modmod collections already.
That's what you think
Maybe you can see it like that about the units mod ,wich is wrong , but do you really think religions mod , corporation or even buildings mod is a collection mod made by things loosely grouped?
If you did those 8 units as 8 modmod's each of which was individually includable (or not), it would be more work, but it would also mean that you could make 8 become 9 really easily, or 10, or 12.
Following this kind of thinking you can , easily , split RoM in 2369 mods ... and all will be still playing 1.0 version , of course
And my corporations mod in about 55 single mods , easily
And my religions mod in 150 , easily
I think you'd find it'd make your work of expanding it for yourself easier

As well as giving the end user more choice.
It's not easier at all
It multiplies the effort by the number of things you are going to include
What is easier is that you try the mod , if the things added likes you more than dislike you use the mod and just don't build what you don't like , as RoM as more things to build than time to do so
That's the easier way
In your way , ME would expend about 3 months of MY time just to get what ? The same that's already done ... and then you can choose easier what is already easy enough now to choose
I hope i haven't sound to rude , just wanted to be clear . And , as i said before , my mods are what them are , and are good and easy enough .
If you like , take it
If you don't like , don't take it
And if you want to modify them , do it .... i'll help you if need me