Just using the features you mentioned above. The Moon Missions were novelty diversions. There's no replay value in them and they are very linear. It certainly took some time to model the car and the environment, some would argue the tradeoff wasn't worth it.
When it comes to GTAcademy, I can see how it benefits the winner, Nissan and PD, but I don't see how it benefits the average gamer. The competition is essentially 4 time trials. It's great they can transistion a gamer into a race driver, but it doesn't benefit me or 99.99999% of GT players in any way I can see.
When it comes to the Kaz Q and A, Kaz has answered 1 question, a question we've had for years about improving sounds. His answer? The sound update isn't ready, it's a big job and we don't have enough staff and we need to hire people. I don't think that's the answer most of us were hoping for nor lead to believe given his admittedly cryptic statements over the past year regarding sounds.
The problems with GT are tiny only if you don't care about racing. I realize some people like hotlapping and racing against the worst AI in sim racing but most of us actually want to race and that's not a tiny problem in GT. Nor is the lack of proper sounds, the missing features etc. etc. etc.
I never said that the Moon Missions were the best thing in the game, I've only played them twice each and don't think I'll play them again but they were an interesting feature that certainly grabbed alot of people's attention and gave GT6 some media time, which is essentially what PD wanted with GT6.
GT Academy, it has been used to promote GT as a brand to help boost sales for the hell of it, higher sales= more money for PD, which is what every company's target is, to make a profit and they try doing that with things such as micro-transactions, GT Academy and the moon missions.
Kaz Q&A, he has answered more than than just one question in the whole forum, and for his answer to the sounds, yes it was vague but at least he somewhat acknowledged that the question exsisited and that to me is more important than an answer.
Yes, the AI is terrible, but if you want a race either race against the AI with a certain target, like lapping them twice for instance, or race online or something. (Yes I realise not everyone has online)
Now the features, yes Kaz made a massive deal about them being in-game from Day 1, but if you did some research on the official game site, you would have noticed that the features info box noted that they will be available in a future update.
This argument could go on for ever as for every negative in GT, there is a positive. Now let's get on with our lives and either play the game we love or go and put it down, but that's anyone's choice and I won't stop it.