Everyone is their own experiment, that is for sure. But it's easy as a newbie to overconsume (I did it with the Primal Protein bars and had to stop making them - I'd eat the whole pan in one sitting). Just because it's primal doesn't we have an open invitation to eat as much of it as we want, and when we make mockups of food we used to eat when non-primal (for me it was protein bars) we tend to fall back on old habits and overconsume the primal versions. I can see people who venture into primal/paleo using these Paleo-version foods never breaking the cycles they need to break to reach their goals.
Those that partake SOMETIMES, like for birthdays and what not, would be ok because they're not overconsuming. But those who replace white bread with Paleo-bread will likely overconsume the nutty goodness and entertain a whole host of other problems (i.e. weight gain from increased nut consumption), which could turn them off from the "real" Primal/Paleo concept because it caused the to gain weight (or increase inflammation, etc, etc, etc) because they took a less than ideal approach.
However, I guess Mark did a blog on these very foods and said they're primal, but limit yourself. Is Psyllium Husk Primal or Paleo? | Mark's Daily Apple