I would defend that, but you've missed two critical points:
1. Changes to AoE siege weapons were reverted very quickly (which is in this thread)
2. None of the current RvR system represents future direction (which is in my sig)
In light of this, I have nothing to defend except this:
Tsokushin wrote:Let me ask you a question, if 2 forces of equal skill and technology were to meet in battle, 1 force being larger, in what world would the smaller force be supposed to win?
You're looking at it wrong.
How you should have posed that was:
If two forces of equal skill and technology were to meet in battle, using defensive weapons which are slow and have setup time, should the smaller force be able to defeat the larger force if the smaller force is entrenched and has its weapons set up?
The answer is YES.
The aim of this, as stated before, was to create a subgame on the periphery of the zerg, which revolved around both acquiring tools that would threaten a zerg, preventing the enemy from acquiring those tools, and through control of the map, gaining an advantage in overall materiel which is necessary to complete the siege. The artillery pieces will exist within that framework chiefly as THREATS, which must be dealt with. Their power is a motivator for the better players, in smaller groups and warbands, to deal with them while the main zerg or zergs do their thing. A weapon that exists chiefly to threaten is still valid, and it must be capable of carrying out that threat in order to accomplish that purpose.
So, to fully answer your question - when a large force meets a smaller one, that larger force should win IF AND ONLY IF it is able to employ its numeric advantage in that particular combat. Both terrain (funnels) and artillery are threats to this. That force will have to play around them. If it cannot, and chooses to attack a strong defensive position without the tools to break it, then it should lose.