Why would you expect B-spec, course maker and tracks that were never even mentioned?
First off, I personally didn't expect anything in particular from GT7, primarily because of Kazs/PDs history of constant dishonesty with the GT fanbase, nor did I ever claim that I was expecting such things to reappear in the game. Regardless, it doesn't absolve them from receiving criticism for their decisions and said dishonesty.
Secondly, PD is the one who made the claims that GT7 was the "pinnacle of the series" and "the most complete GT game to date." That's a mighty big claim to make considering how much area GT has covered as a franchise. Kaz/PD/Sony should've known that such a claim would, very understandably, create certain expectations from customers, given the history of the franchise (and, let's be honest, they more than likely knew this beforehand). These claims were made in order to entice the public to spend money on their product, and when it became clear that PDs initial claim were basically a lie (alongside the various other aspects of the game that were never touched on or clarified before release), then people are justifiably going to feel like they didn't get what was promised to them.
You're trying to make it seem like people got their hopes up foolishly, but it
was PD who planted the seeds for those hopes to begin with. As such, there is some onus that very much rests on their shoulders.
Why would you read that much into a simple sentence about what they think of the product (not you), especially when it's coming from PD. I certainly didn't!
Again, PD were the ones who made the claim. That "simple sentence" carried a lot of weight behind it (especially considering how much the series has fallen off over the past decade), and to pretend otherwise is being dishonest.
And like I said earlier, if GT7 is truly the most complete entry in the series by PD's standards, moreso than the likes of GT2 or GT4, than that suggests that their quality standards have dropped significantly, and/or there's a pretty significant amount of incompetence within the studio.