It's one thing to say you think a certain mod is redundant but to suggest it shouldn't be public anymore because you don't know how to use it and don't want to learn it or how to get it to work is just plain wrong. The notion others shouldn't have access to the mod because you decide so is stunning.
That said, you describe the "quick and easy" way as the better and I have to disagree with this. For me it doesn't matter if something is easy, hard, complicated or whatever as long as it's fun to build. For some the reason to build something is to have the finished product and those prefer the quick and easy way. Others don't need a reason to build as long as it's fun. If two builds do the same thing, one takes 10 minutes of boring stuff and one takes 2 hours of interesting stuff, the second one is always better.
Also, on the one hand you say you don't want to force people to use RotaryCraft by removing TE. But on the other hand you say TE and IC2 do the same thing so they shouldn't be both included in the pack - by removing IC2.
Forcing people to use a mod by removing TE? Bad
Forcing people to use a mod by removing IC2? Good??
And than you wonder why it's hard to explain your point. It's called getting caught in your own hypocrisy.
Forcing people to use a much more complex mod? Bad (remove TE = remove the easy mode. New people may not understand the harder mods such as RoC)
Forcing people to use a mod that is the same, but has a different power system with
less support (not as many EU generating mods as there is RF)? Good... to an extent.
And I never said they shouldn't be public, I said removed from packs where they are made redundant/obsolete.
Let's take one of the more popular packs, Direwolf20. In there we have 2 massive mods that use RF for ore processing; Thermal Expansion and EnderIO. Now they can be powered from:
EnderIO generators, Thermal Expansion generators, Extra Utilities generators, Big Reactors generators, Buildcraft generators, PneumaticCraft generators.
Now IC2 has:
IC2 generators, PneumaticCraft generators.
And seeing as the mod's functionality is in other mods, which have more generation methods, people are going to go for the ones where generation is
easier to unify. Obviously people could go RF -> Bar -> EU to use RF to power their IC2 machines, and not have to have 2 generator types. But in a pack like that, people want ease of use, not complex builds.
If we take a pack like Resurrection which has Gregtech in it. Then fine, I have no issues with IC2 being in there, (assuming it still utilizes IC2, I haven't played around with GT for 1.7 yet), because GT adds a lot of cool stuff, more than is in there with RF. And although the power generation options are limited to a few mods, you get a lot more bang for your buck.
With packs there should be a nice balance of what can produce the power type and what can use it. For example if we were to take DW20 and add in RotaryCraft, yes, there is only RoC that can produce the power type for its machines. But it adds so many machines that it outweighs its negatives. Whereas IC2, as a standalone mod - or with addons such as nuclear control/advanced machines, doesn't add anything extra to what mods such as TE and EIO add. And because those mods have a very wide variety of power gen methods, people are more likely to use those mods.
Why does it matter that a lot of people use the mod, to me? Because there are a lot of people who don't have terrabytes of storage space, or A* processors. They suffer from mod packs having mods that get little to no use whatsoever in some packs. And I know a few mb isn't much, but if they are like me and have 50+ packs installed on their PC, some which they may never touch, but may do so they keep them, then that storage space starts to build up. And as for processing power, 1 mod doesn't do a lot, but if it adds world gen, or has weird requirements to the mod (such as factorization's dropper - book thingy) then it could start to hinder that person playing.
TL;DR : I don't think the mods shouldn't be public. I don't think the mods are better/worse than others. I just feel that they are being added just because they can be added.