Haha yeah, both sides are trying to interpret the data in their favour.
What I will say though, and I promise I'll stop after this, battle performance is very dependent on the collection. Some collections will do better with XBOT, some better with AM. In this case AM was slightly stronger, but that's certainly not the case on average. Also, you didn't use XBOT's boost mode, which is designed to improve battle performance.
In cases where AM performs better, you're paying more in fees, which negates the difference. (Like in your example)
In cases where XBOT performs better, the difference in net earnings is huge. (Because of more earnings AND less fees)
Also if you care about extra features, like automatic SB combining, card rentals, SPS rentals, in-depth analysis, liquid rewards, XBOT beats AM by a landslide.
RE: The Epic conclusions: XBOT vs. Archmage in the era of rebellion