I am going to go ahead and agree with Mez.
You (most people who posted here) obviously aren't enough adroit to use the Spiders. True it takes time, true it takes a lot of planning, but this is what builds all the excitement, all the rush. And what you get in counterpart is not to be neglected! Why would it be easy to acquire units your opponent sent resources AND time to build? You are all arguing because you think Spiders take too much clicking, but then again, this is what Outpost 2 is ABOUT! Micromanaging.
I am going to take a pretty simple example: StarFlares. I am very sure that before me, no one really cared about nor was afraid of StarFlares. True it is difficult at time to find the right passage and the right moment to sneak up on your enemy, but once you do sneak and destroy your enemy's structure, you can help it but feel happy. Why I am using Starflares as an example? To let you know that you are not going to see the quality of a unit unless someone who is dexterous with using it shows it to you.
So please, I would be pleased if new ideas weren't meant to remove little things that build up the beautiful OP2 we know. And please, don't criticize other units unless you have spent enough time analyzing that Huge Balance system it belongs to.
If you however decide to do so, make sure you keep the balance intact.
P.S: The people who created Outpost 2 weren't stupid, they took time to think about the different units and thought a lot about game balance.