Describe your suggestion

When you can craft replica ingots, you already should have so much infrastructure and so much resources that pitiful output of replicators is useless. Keep in mind that Disintegrators and Replicators are SLOOOOOOW. And if you build a ton it hurts performance and space.
So this mod feels suitable only for beginning, not for mid/end game.

Why would you like this added/changed?

See above

First and foremost, this should be able to be sped up using IF Souls.
Second, it's not that it's gated too much, it just needs more things with matter values. Honestly, it's something that has been discussed a bit, but it's a very time taxing job. There's quite a few items in the pack.
Third, in my opinion, end game mek is pretty easy to get too, not even compared to MI, but BOMD, Caaclysm, Irons, etc.

Antimatter from mek barely does anything, it allows for some weird conversions, but thats about it

Second, it's not that it's gated too much, it just needs more things with matter values.

I mean: to make replica ingots you need antimatter. When you have antimatter you hardly need Replication mod.