Yeah I get where you're coming from. It's also impossible for Jagex to please everyone so some people are going to have to compromise. Currently it's people who just want everything to be quicker and simpler, and if they make it quicker and simpler, those who like the nostalgic aspect of trading the traditional way will have to compensate (and hence moan).
I think it's a really difficult situation to resolve, and I can't see Jagex jumping in with both feet too early. They need to get it right to maintain that the game isn't completely straightforward and easy for everyone, but at the same time making it easier for players to do what they need to do.
Personally I want a trading solution such as the GE. You got what you wanted at the price you wanted it for. If someone was willing to sell or buy at the same rate you were, you got your deal. Simple economics, demand and supply.