I'm starting to believe you're purposely talking your way around things, but there you go, straight from Google. Is purchasing something for a few dollars, hassle free, not considered convenient? Yes it is, there's no talking around facts. Tell me, why would they encounter bugs, you seem to assume the probability is high when this isn't the case unless they've poorly programmed something with a band-fix that may not work at a later date. Have they put FATEs that may overlap the event ones? I'm not sure, but probably not, and if so, they could be disabled during the event FATE. Is old content like dungeons broken after each major patch they perform? Perhaps, if the people working at SE are incompetent, but they aren't. The likelihood of that is lower than 20% I'd bet.convenience
kənˈviːnɪəns/Submit
noun
1.
the state of being able to proceed with something without difficulty.
How much copies has FFXIV sold since the last time the event happened, 1 million, 2 million? It's not a handful, I've personally recruited 3 since after that time myself. This would please a large amount of players, while only putting off those who don't want others to have their shinies, and if it's truly not about being a special snowflake, then it doesn't apply to the majority of the posters who've said that it's not about that (the majority). Hairstyles would please less people, I can guarantee you that. Every single time a new one is added, "omg SE this looks identical to this one!" posts image of hair that looks nothing like it - That's unrelated though.