Looks like you're new to this thread, please read this first if you want to have a meaningful discussion:
http://forum.square-enix.com/ffxiv/t...=1#post2164220
But to summarize, and why your statement shows just how completely blind you are to the real issue at hand, which the OP is trying to address:
1. FFXIV uses mechanics like 100% of every game, yes true. And like you said, they use a certain kind of mechanics, being a telegraphed AOE which you need to move out of mostly. The issue the OP is trying to bring up is that, a fight is mostly determined by this dodging mechanic, more than any other mechanic.
2. Because some fights are more mechanics heavy, gear makes less of an impact on the fight, we have been referring to these fights as ones that have insta-death mechanics, fail to dodge = instant death. This completely negates any gear advantage, so your comment of "get better gear" won't help, if you fail to dodge X mechanic, you die, iLvl 70 or 110, doesn't matter. (the example in the OP is Twintania Divebombs, Landslide is another)
3.
As for this comment, I'd say good on you, that's great that you have the dedication and time to improve your skills and knowledge (memorizing fights) to beat these fights. But you can't assume everyone has that perseverance, time or even enjoys practicing and dying again and again to beat something.
This is where opinions diverge, one type of player (hardcore/some mainstream) players say, just like you, "that's your fault, get better or get out". And "get out" is exactly what they will do, they will find another game which they enjoy, that doesn't make them headbutt a giant obstacle and fail endlessly due to no fault of their own. This is what the OP is worried about, the OP doesn't care about players that are on coil, they're happy, we are worried about casual players and less skilled mainstream players.
But more understanding players realize that if we tell them all to get out, there will not be enough subscriptions to support FFXIV and it'll eventually fail because there won't be enough development money for FFXIV to compete with other MMOs. To this we are saying, when content is old, 2-3 months+, don't just give us echo boost, properly address the fights individually. For some fights like Titan, echo boost won't help you; in this case a more creative solution needs to be implemented.
-----------------------
As for: I agree with Bizniztyme, you'll get a wake up call because WildStar combat is FFXIV telegraphed AOE on steroids. But WildStar also has Exploration and Settler Paths, which are catered to the more casual crowd, which you may like. This is what FFXIV needs to do, offer content for casual players OR ease current content for casual players, or we will just bleed subs till the game is nothing but the hardcore/mainstream players. But if that's what people want, so be it, but there will be consequences.
-----------------------
The example I like to remind people, is to think of a friend you know who likes to play RPGs on easy mode, that friend who levels up on the world map until he's 10+ levels stronger than the boss before going in. Even if you don't have a friend like that you can relate, there are casual gamers that don't necessarily like the challenge, nor the frustration that comes with it. They play games to relax and have fun, they want progression but don't care about being the best or joining a static. We have to be more accepting of these users, because that's where the development money comes from, like Yoshi said ~5% of players are passing T5, probably more now, but most players are doing other things and we need to ensure they are not being held to the same standards that the hardcore players are.