Damage / Buff calculations based on animation is problematic.

[Gilthas]

Asking players to accept it, is asking us to accept poor design and response time..

There are 2 potential cases..
1. SE don't know how to fix it.
2. It's a design choice.

Both are terrible.

Sorry but "you not liking something" isn't the same thing as "poor design".

People need to adapt to the game system instead of demanding that the game system be changed to suit their personal tastes.

Well this can also happen.
Along with complete animation cancelations.
Use a skill, half the animation is displayed, half of the GCD completes, then you find out that the skill didn't actually go off. This happens quite frequently with Shield Lob.
So yes, often skills are also unresponsive, which is another glaring issue entirely.

If this is happening frequently to you I suggest you check your internet connection. I only get this when I'm lagging. And no, not all lag is due to SE's servers.

Regardless, this has nothing to do with your original complaint, you're just going off on a tangent to support your "unresponsive" claim.

[Alberel]

Sorry but "you not liking something" isn't the same thing as "poor design".

People need to adapt to the game system instead of demanding that the game system be changed to suit their personal tastes.

For some skills this may be the case but skills like interrupts and defensive cooldowns are designed to be used in a reactive fashion and the animation delay on such skills basically defeats the purpose of them, especially once latency is factored into the equation. As it is at the moment there are situations where players have to try and time their reactive skills to be used BEFORE there is actually anything to react to. That's just bad design as far as I'm concerned.

Take a look at silences for example, there's a reason why BRDs are generally the most preferred choice here and it's not just because they have the most readily accessible silence. BRD skills are nearly all instant and most have very minimal animation delay, their silence included. Why do other jobs even have silence if the BRD one is simply flatout better due to the animation?