I suspect that the journo's choose the cars that they think will engage the most people. They are after all in the job of selling print.
Their priority is not the best matched machinery, but the widest appeal. They will also have more than one eye on who is paying for and likely to pay for, advertising.
Those cars all have healthy enthusiast followings. And here are we (enthusiasts) discussing the article, and some of us will likely become purchasers of, or subscribers to said publication.
Nice to know that the S8's appeal is shared by more than just us