Quantitative Physics analysis below.
135g with relatively sharp edges at 30mph can easily blind you hitting you in the eyes. It can tear a pretty major gash across your scalp, requiring stitches, and bleeding profusely. It can permanently alter your voice, ruining the ability to sing, and if that was your profession, devastating and financially enormously costly.
Any of these injuries would be considered "major" by most of us. Further, the gravity of any injury is not uniform. Causing a hemophiliac to bleed can be life life-threatening. Blinding a one-eyed man in his good eye would be life-devastating.
This is not about probabilities. Those scenarios are, of course extremely unlikely. However the issue is about people, not risk.
Finally, people who do not consider such possibilities, but rather casually dismiss risk based on a shallow, brief analysis based just on the weight of the drone, are likely to be just as casually reckless flying around people because they've convinced there is no meaningful risk due to the weight.
By The Numbers
For the physics literate: The
Neo carries 16.4K joules of energy at 35mph. The
Avata 2 carries the same at 20mph. A hit by a 377g
Avata 2 at 20mph is going to at the very least leave a mark, and depending on the collision, cause permanent injury.
Finally, because the area of the direct impact will be smaller with the
Neo, the Specific Impulse at the collision point will be larger, increasing the force of the impact. Like plowing into someone's eye with the edge of prop duct. Because of this, it's possible for the
Neo to deliver more force and damage at the point of impact, even when carrying the same kinetic energy, than the
Avata 2.