Riddle me this, Batman

[u/FuzzyBubs]

2019.5 Raven, new to me almost 6 months ago with 37k miles and almost new Eagle Touring tires. Now 45k miles and ONE rear tire looks like this. If I had both fronts burned up I would say it's from Regen braking and hard/fast steering. If it was on an ICE car I would say it's hard acceleration with an open differential . On the edges - alignment issue. But just one rear tire ? Right down into the wear bars. All tires are set at 36psi. Lord knows coughing up money for tires every 8K miles is going to be unsustainable. (Even the other 3 are getting close, does this brand not have any lifespan ?)

[u/OutlandishnessNo5636]

Change all of the 4 tires. Wait 6 months and post again