Hate to be contrary (no, really, I do!), but that's not how I'm reading that tire at all.

I see a tire with overall fairly even wear, no feathering... with flat spots. Flat spots are caused by braking. The banded triple flat-spot makes me wonder if maybe the car has ABS.

Once a flat spot is started, the tire tends to want to lock up in the same spot easier under hard braking, so the flat spot will get worse rather than better.

So, if my ABS guess is correct, these are obviously not high-performance tires and they're probably old and hard... so some aggressive-braking driver liked to late brake and eventually got a flat-spot started on the right rear tire (the one with the least weight on it under braking). Now, the way ABS works, as soon as it senses the lockup, it releases and reapplies the brakes... that's why there are three flat spots. "Chirp, chirp, chirp" until the car is slowed enough to no longer lock up that tire.

That's what I see. I'd be curious to know if my ABS guess is correct.

.1 degrees of toe out won't cause flat spots. If it caused wear, it would be simply excessive wear all around the tire. .1 degrees probably isn't enough to cause feathering... more like .2 degrees might. But, in any case... flat spots are not an alignment issue.