She was snatched from a rural area. Her alleged abductors must have known she would be there, and waited until she was vulnerable. This implies premeditation. Not, "Hey, look a young, blonde American, let's snatch her!" Premeditation implies a bit of planning, and foreknowledge of the victim. They would know where she lives, see her husband, kids, etc.
It's highly unlikely this was a case of mistaken identity, and it's highly unlikely she was the intended victim of sex trafficking. I believe LE is skeptical of this, and only the PI hired by SP's family has said it's a possibility.
What you say is true. There are factors inconsist with trafficking.
I was responding to a post that said she was not in the targeted age range.
There are factors, however, consistent with trafficking.
Per an FBI bulletin
https://leb.fbi.gov/2011/march/human-sex-trafficking
Generally, the traffickers are very organized. Many have a hierarchy system similar to that of other criminal organizations. Traffickers who have more than one victim often have a “bottom,” who sits atop the hierarchy of prostitutes. The bottom, a victim herself, has been with the trafficker the longest and has earned his trust. Bottoms collect the money from the other girls, discipline them, seduce unwitting youths into trafficking, and handle the day-to-day business for the trafficker.
Traffickers represent every social, ethnic, and racial group. Various organizational types exist in trafficking. Some perpetrators are involved with local street and motorcycle gangs, others are members of larger nationwide gangs and criminal organizations, and some have no affiliation with any one group or organization.
Traffickers are not only men—women run many established rings.
Physical Indicators
Injuries from beatings or weapons
Signs of torture (e.g., cigarette burns)
Brands or scarring, indicating ownership
Signs of malnourishment
CONCLUSION
This form of cruel modern-day slavery occurs more often than many people might think. And, it is not just an international or a national problem—it also is a local one. It is big business, and it involves a lot of perpetrators and victims.
Agencies at all levels must remain alert to this issue and address it vigilantly. Even local officers must understand the problem and know how to recognize it in their jurisdictions. Coordinated and aggressive efforts from all law enforcement organizations can put an end to these perpetrators’ operations and free the victims.
I'm not certain this is what happened to Sherri Papini. But until we know more details I don't think it can be ruled out.