A lot of these reasons are false IMO..
The Spurs have always "gotten the best shot" from their opponents, that isn't going to change because they're the champs, tbh

..such a cliche..
Also,
none of the teams in the West are going to improve dramatically, with the possible exception of Gasol to OKC, and even then, that move looks better on paper than it would actually look on the court..
The reasons to be skeptical: Age of Duncan, Ginobil's age and health, Mills's injury, Diaw's hunger and most important of all, the 2014 season was potentially the beginning of Tony Parker's decline, as he struggled for most of the year..