They also said how much fun the devs had with Eureka, that they have listened to us after Diadem 1.0 (which we saw in Diadem 2.0 that they truly did not or to someone else). Also they have told us things in interviews before and changed their mind later too..so maybe they should only talk about things in interview that they will also stick with and not change later, this way people might be able to 100% trust what is said there.

Also just because it was not able to be implemented in the normal way does not mean that this was the only outcome. The devs sadly have more than once shown that they are a bit blind to other ideas (glamour book, housing) so maybe they have told themselves that no other way was possible, even though a lot of people do play jobs like redmage even if they are not 100% like other FF ones.

About your quotes: "everyone doesnt read interviews" does not mean "they dont listen", it simply means that most probably wont follow all the interviews (especially since quite a few are jp only..and only have fantranslations) thus they might be surprised about this blue mage. Honestly probably the major amount of players does not read and post in the forum, does not go to fanfests, does not post on social media about their opinion or follow the interviews. And that is probably why he said that not everyone reads interviews, so even if he has stated his opinion on it (and again his opinion can change quite fast...)not everyone will have read them..thus the surprise. But of course you can also read it at "omg the community dont listen"

"Over 70% were positive" Sometimes I really would want to see their numbers, how they get them and how the interpret them. I mean its the same team that says that something is fun for the community just because x amount is doing it while ignoring that maybe other just do it for the rewards and dislike the content. Again we are of couse only the minority because most people will probably not even post about this game somewhere but that also means that until its implemented they also cant say for sure if we are just the loud mop or if maybe other also dislike it. In the end the forums and reddit were always a good little hint about content. And if you have a split everywhere (even if its not that hard of a split like Eureka was..) then I doubt that the majority really is all that positive. But of course it can also happen..but you would still have 30% of them negative. (And again only of those that post)

About the last point: And nobody said that stuff like the carnival shouldnt be in the game at all. They could have still given people this as their solo content which they might even use to introduce more of such content in the future for other jobs.