Jesus christ you people are sadists. These things are stupid little quality of life changes, nothing more, nothing less. Why does the game become easy-mode when you can see from a distance if a mob's going to attack you? It's fairly common sense anyway at this point being as pretty much all mobs in a family do the same thing.
For me, it's not that it makes things "easier" (because I don't really think it does, not really), it's that it takes away from why I play MMOs in the first place.
If I'm playing a fighting game or pretty much any single player game I want to have as much information about what's going on as possible. Mostly because I'm just there to play a game. I want my skill in reflexes, strategy, or whatever else to pay off and not be hindered by the game just not telling me something.
But in an MMO I don't just want to play a game. I'm not only there to complete as many quests as possible, grind as many levels as I can, and get all the best loot. That's certainly some of the fun, but it's not all of it. I also want to be able to explore new areas and learn things about all the different ecosystems. I want to slowly amass information like "ahriman detect by sound" or "coeurls are weak to earth magic" or "lizards will help each other out if you engage one." I don't just want to play a game, I want to spend some time in a virtual world, live there and pick up on patterns and rules from experience.
Knowing something will attack if I get near makes no mechanical difference whether I've learned it over time or noticed a little symbol by its name, but it makes a big difference in the way it feels