I strongly suspect that neither Jyotai, nor Langis have been above 2300 rating in arenas.

If permitted that assumption, it's safe to conclude that their opinions on PvP are those of the novice or beginner. Beginners will frequently be thrown into battle against highly skilled players (who have gear because they took the time to earn it) and often mistakenly conclude the gear is the only difference.

This is the one true fallacy of the beginner. PvP is entirely different from PvE. As en example, Cataclysm's final tier of raiding brings 8 bosses. That is eight different fights to master. Each one takes analysis, an assessment of individual/group ability, and much practice.

Consider that WoW PvP brings 30 different class specializations to the game- capable of arranging themselves in many different teams. Furthermore, the synergy between teams greatly varies with their composition. Thus the number of possible combinations is vastly larger than all the boss encounters of an entire expansion. That is a lot of scenarios to master- it takes time!

That is why I am looking forward to MoP. The addition of another class adds more than just three specializations of complexity. Additionally, the introduction of base resilience will help to reduce the frustration that new PvPers mistakenly attribute to gear issues alone. Instead, it will help to refocus people on the real issue: practice and skill.

Let me also offer these words of encouragement. When people in arenas start accusing you, or your team of being bad, ignore them. Validating their comments with a response only feeds the communication. The person who says this is really just frustrated that the team lost. There's nothing wrong with being frustrated. Losing is not as fun as winning, generally. You are not bad. You are merely learning. Stick with it, ignore the jerks, and seek out people that actually help you improve.

Then one day, you might see them again on the battlefield- and when you beat them, you can show them how to win with class.