The two main people pushing the "false memories" stuff, are the parents of a researcher into dissociativ...
A lot of the false memory dilemma also rose up during a period of history a while back when therapy was still based on "every issue you have is due to a repressed traumatic experience." This did cause an outbreak of false memories and research was done as to how memories could be "implanted" by therapists. There was even this whole awful time period where there was this "therapy" where they would beat people or otherwise put their bodies under a lot of strain, even children, in hopes that the physical stressor would trigger memories of what traumatic event they had been through. It ended up with people (especially the kids) just making up things that had happened to them so they could end the horrible "therapy."
So that scare did start up for a good reason. But therapy has changed now, and you're right that it is much more unlikely for false memories to be planted with today's methods.