Raiding content on kRO2 is trivialized because of the short resurrection cooldown. People are free to do whatever stupid actions they want, because they know they will have a resurrection if they die doing it. That is not how the game should be. People should be forced to play well if they want to raid. Dying should be punished, not just shrugged off because of free resurrections.
If you're using the argument "What about the fights that have an instantly-kill-on-a-timer mechanic," those are called dps checks. They are there to force your group to have the required dps to continue. You beat these encounters by collecting better gear, and having viable specs. You do not beat them by throwing corpses at the boss with infinite resurrections.
Take a look at kRO2 right now, it is completely dead, because there is nothing at all to do on it. Every guild has cleared every raid because of how trivial the content is due to the short cooldown of resurrection. Do you want the same to happen to iRO2? This will happen if the resurrection cooldown is reverted back. If you want an easy time getting all your purples and have nothing else to do after you're completely geared, go back to kRO2. Stop complaining about something that improves the end game of this server.
Understand that the same people who are "complaining" about the ressurection cooldowns are the same people that went through first hand, the endgame playstyle featuring these changes, that you're assuming is "Challenging" and "an improvement". I assure you that the endgame playstyle featuring these changes is
not good.
First, let me tell you that the complaints about the ressurection cooldown is the whole story. The bigger picture is that it verifies the fact that client version iRO uses is the same one that SEARO2 uses. And that's what everyone's real issue is, because they've been through all that already, and its a very dreadful endgame. One that isn't an "improvement", but one that
forces players to abuse bugs and exploits, to even complete the stage. An endgame where a number of raid bosses
simply cannot be completed any other way. Furthermore, it alientated a majority of the non-cash shop users, as it was basically a requirement to have certain cashshop items, if you even wanted a chance at completing certain dungeon.
Specifically speaking about how Res timers and such affect end game, it wasn't about "adding challenge", it was to force players to buy spinels. Spinels describe your description of "You do not beat them by throwing corpses at the boss with infinite resurrections.".
Just to clarify, SEARO2 made numerous changes, stating that they were doing it because they felt their playerbase was more
hardcore, but many players knew that the main reason why to make the gameplay so difficult, that players would have to rely on cash shop to do the endgame. Besides the Cooldown Ressurection increase, several things were changed such as Pot Cooldown, and buffing the raids to an crazy amount. They also made a few noticeble changes aimed at monetization (Removing Large and Super Large bags from being dropped, removing the drops of weapon tokens to make it harder for people to get geared, etc.)
So again, most people aren't angry with the Cooldown (In fact, I wouldn't mind if the others were fixed), but angry with what it means for the rest of the dreaded specs that will come along with it.