Have this exact petty. Can confirm that mine also has a really uneven bevel. Yaxell's QC genuinely sucks, so while I"m sorry this happened to you also, I'm not surprised. My profile is also a bit buggered up, so you got lucky there at least.
I've been using mine for about a year and a half now. I sharpen it normally and have never taken it lower than 1k. It gets super sharp quickly, and Yaxell's VG10 is a solid performer.
Based on my own home experience, I would recommend not resetting the bevel, it's just a pain, especially as this is a 70/30 bevel. When sharpening, sharpen normally on a 1k, and spend more time in the areas where the bevel grind is crappy to even it out. Over maybe 3-4 sharpenings you'll have gotten there. In the meantime, you will have a very sharp petty to work with.
I have 3 yaxells (got them before I knew any better, and all of them are in a drawer besides the petty). All of them have uneven and shoddy bevels. If I knew now what I knew then I wouldn't have bought them. The petty is the nicest one to use. Additionaly, OOB sharpness on the yaxells is crappy, so they need to be touched up on the stones anyhow.
Buyer beware, I guess.