Physic he did not deny it. He purposefully used ambiguous language which I explained with what I stated earlier (multiple times even). To a question like that, the answer would be very simple if you wanted to make your actual intentions known.
You respond with:

"The release went as planned because BLU was NEVER/NOT meant to be a "solo" job as people have been claiming it to be. It was meant to be X and Y, etc."

If anything this entire thing should lend credence to what is being said about BLU being used as a tool. And I do not at all think that he didn't know what he was doing, on the contrary I essentially stated that he knew VERY WELL what he was doing if you read the part concerning SE's objectives.

However, you do shed light on the issues presented before us.
Because this would all mean that:

A) SE made a mistake and did not know what they were doing (as you implied), but I do not think at all this is the case. They should have learned with 1.0 to not release unfinished content.
B) BLU was used as a tool, a treat to keep the playerbase at bay, as it's been suggested multiple times on this thread. What this means is that it's not a sincere look at the class and what Yoshi-P is saying is a lie, thus your point crumbles.
C) This is nothing more than a test to gauge the reactions and finetune the job so that it may transition into an advanced job proper like the Red/Black Mage. But thus far this is the more outlandish possibility.

But a priori, what you suggest or Yoshida might say, is nothing more than a poor excuse. Jobs change according to the game, it's what happens, and what he says right there, can once again, and please this time answer:

Taking into account that people who liked BLU have been asking for this job to be made available for a long time in FFXIV.
Would, the people who actually cared about BLU, have been upset at this job NOT being made into a "limited job" because anything else would not have respected the purported "enjoyment" they could get from the job?

Before you read the answer I would like you to actually stop and think about it.

NO > Because it is physically and logically impossible for that to happen. The "limited job" part was not something that existed before BLU or even before the presentation was announced. Which makes what Yoshi-P says about enjoyment complete nonsense. People would have enjoyed the class regardless of the "limited job" system because had BLU been introduced as any other job, people wouldn't be complaining about its existence as people do with the limited job, but they would complain about other issues that affect ALL the classes in ALL the games.
This is nothing more than a poor excuse to either keep BLU out for lack of will to put effort (and yet decide to introduce something completely new like Gunbreaker) or personal reasons from the dev team that we do not know of.

YES > Please explain the mental gymnastics on this logically impossible feat.