Not for me, I don't mind the car collecting aspect but I've come to care less about it over the years. I remember during GT6 in sites like Gaf and even members here saying that the CARPG aspect is old fashioned and is starting to feel stale.
PD's change of mentality is a good thing in my opinion.
Hideo Kojima made a deeper, funner, better WARPG in his first try then PD could make a CARPG in 6 tries.
The concept got stale because of just that, it stayed essentially the same for almost 20 years. It failed due to a lack of creativity on PD's part, not because the core concept was flawed beyond repair.
Play NBA 2K franchise mode from 1999, then play the Franchise mode from 2017. Huge difference. Now play GT1 and GT6. Pretty much the same thing. In NBA 2K 17 they have an actual story, you sign contracts, theres interviews, cinematic cutscenes, TV style presentation, etc etc. In GT6 theres.... oh right. They had a new star system thingy, right?
PD essentially recognized their failure to build a compelling single player experience, so they've gone online with GT Sport. Now they dont have to worry about programming decent AI or building a desirable career mode.
Kz & co kinda ran out of ideas around GT4. And some of the good ideas they had like B-Spec, used cars and course maker they fumbled or butchered.
IMO GT's time is up, the series is well down the hill now, I'm awaiting a new CARPG game to arrive at some point and take GT and Forza's lunch. Ideally it will be multiplatform and the team behind it will take what GT and Froza built and expand onto it greatly.
Thats why I dont bother complaining about PD nonsense anymore, stuff like throwing away premium cars, taking 4 years to build a game with half the content of their competitors, or adding Porsche but just one of their cars. I know the franchise is finished and Im not going to bother hoping it gets better.