WOW! That's crazy.
One another note i recently prepped my EX4 for the winter and replaced the burn pot and the glow plug assembly.
While giving it a good cleaning I dropped the ash pan housing and replaced the original felt gaskets with Lava Lock Hi-Temp gasket material. I had lost one of the felt strips and smoke was coming from under the EX4. Now it's all nice and tight and smoke only comes out the vents.
Other than crumbling burn pots and melting glow plug assemblies this grill has been great.
I am starting to think, going forward, I will sear on my SNS Kettle and keep the pellet grill for lower temps and see how the burn pot and glow plug last.