Care to post the evidence? I want to see each and every article, seeing as you keep it handy and on your person (let's be honest, you have it saved).
Have you never heard of Metacritic? Literally keeps track of average scores of games from reviews with summaries? No?
But, as I have them handily in my pockets I'll post them just so you feel special:
GT6:
Gran Turismo 6 is a comprehensive racing simulator that allows fans to drive a prolific collection of cars on the world's most legendary racetracks.
www.metacritic.com
"Gran Turismo 6 is a massive game, and it is fantastic in its best moments, but the shortcomings of the series are getting difficult to ignore. Most notably the awful sounds and the lack of a proper damage model."
"By far the biggest and the most famous racing simulation video game ever. But it does not deserve further superlatives. It knows how to entertain, how to amaze. But it does not know how to cover its semi-finished state. Again, it's a must for hardcore fans. However, racers of the mainstream will more likely roll their eyes than their wheels."
"Yes, it's nice to have that attention to detail poured into the physics simulation itself, but when the likes of Forza are heaping on the features, it's hard not to feel shortchanged by GT6's lack of vision. Maybe we'll see the makeover the series sorely needs when it inevitably hits the PS4, but until then, Gran Turismo 6 remains a fantastic simulation; it's just not a great game."
"Polyphony Digital had three years to truly work on this game and they delivered the same experience as Gran Turismo 5 just with some minor tweaks. Gran Turismo 6 feels more like an expansion rather than a brand new game. It's very disappointing for true racing fans."
Gran Turismo Sport:
The latest instalment of the Gran Turismo franchise is coming to PlayStation4 with the name Gran Turismo SPORT. The graphics, sound and physics engine promise to be the most realistic ever experienced in a driving simulator thanks to the new platform and the new technologies, but that alone...
www.metacritic.com
"GTS lacks overall depth, but it is saved from being a complete failure by its stellar visuals, fun and realistic driving experience. I know how much work goes into producing a major-budget title like GTS, so I would never use the word lazy when describing the effort of the development team...However, this game comes off as an underdeveloped title that is being made to look more legitimate by the history of the series."
"Four years have passed since the last GT game in the franchise, and although this game stayed true to its roots and remains a true driving simulation, choices like reducing number of available vehicles, missing any kind of single player campaign (other than driving schools) and a lack of weather effect control in this day and age may have set this game to a bad start against its main competitors."
"Gran Turismo Sport debuts on the PS4 without a number in its name, signaling a shift for this long running car racing franchise. While the simulation is still very good, and the presentation is top notch, the lack of content in both single player and online modes will leave most participants unsatisfied. With a full asking price and always-online design, all but the most hardcore fans should approach with caution."
"GT Sport isn't for people who want to take racing seriously; it's for people who want to take GT Sport seriously. Superb driving mechanics and pretty graphics do little to hide just how little there is on offer. It asks too much and gives too little."
"Gran Turismo Sport looks great, but a lack of content, some dodgy AI, and an always-online requirement see it limp into the pits. Still, how 'bout them interiors?"
As you can see, none of the points you've raised are relevant to what these games were down scored for.
Perhaps next time you'll do some research before making baseless claims.