Are other people harassed in this way to make their life not only challenging, but to sideline and diminish them for the duration?

This is very true. As you have wondered about this and considered the fact she is an otherwise unobtrusive person from a modest background, to be targeted by a powerful Extraterrestrial Alliance would seem unwarranted. No matter what she might have done in other lifetimes, she did not seem positioned to be a powerful source of opposition to high-level evil. So this contrast does reflect the fact she is one of many such individuals who are being subjected to mistreatment on a regular basis in whatever way is most appropriate to the task in terms of karmic makeup and vulnerabilities. This is done on a very, very wide scale and is, again, a reflection of the reach and power of the Extraterrestrial Alliance, that they can see to this even with all they must juggle in manipulating the world at multiple levels on a constant basis in order to ride herd on human affairs while instituting many, many plots of their own to affect human progress on a global scale. They still will see to the punishment of many individuals because it is part of their way of operating, to focus even on the individual level of opponents who might be a significant threat to them. It is in fact a point of pride, that they can essentially take the fight to each individual combatant in a way never dreamed of in human combat. The best humans can manage to do is bombing cities, firing artillery at enemy encampments, and shooting at any who are out in the open and visible. But other than those brief moments when they can be detected and monitored, as with aerial reconnaissance of a convoy, the enemy is a sea of faceless individuals. The opposite is the case for the Extraterrestrial Alliance—they have everyone’s mug shot, so to speak, and a detailed understanding of their makeup and past history through time by inspecting the akashic records. So they know what each individual has done in the past and to what extent they were a liability in working against the established order as demanded by the interlopers themselves. So they can gauge who is a threat and who is much less so, and focus on those individuals who are potential combatants and get them early, so they need not wait until there might be a battle one day and a test of wills, if only a kind of engineered combat done through surrogates, pitting humans against one another. They can tell in the cradle who will be their opposition and begin to attack them while they are young and render them ineffectual through corruption and abuse heaped upon them in whatever way they can see will be most damaging—that is a quite advanced level of sophistication in carrying out warfare.