You are not alone in your "doubts", they apear to be valid.
Sadly, I fear that JVC may provide Arrow with "cherry picked" production units that JVC has gone over with a fine tooth comb because of the previous disasters of batting ZERO, for ZERO in two out of two different model production units.
JVC literally can't afford for Arrow to receive a third defective projector = "three strikes and you're out". Therefore, what ever Arrow reports, finds or concludes may be
suspect because the projectors he receives probably won't reflect reality since guaranteed, most customers new projectors won't receive the same level of scrutiny and "quality control".
So far this roll out of JVC's highly anticipated 4K projection line has been a pr
disaster. Just read through the owner posts; problem, defect free JVC 4K projectors have been the overwhelming exception to the rule.
This doesn't bode well or inspire confidence in potential buyers.
Sure you have defenders and those downplaying the potential seriousness of the situation here on AVS: ("all new production units have problems, it is to be expected"...etc.) but their excuses are suspect because there's "big money" and profits at stake.
Anyway we shall see what we shall see, only time will tell. That said, a lot of potential JVC 4K buyers, like myself are going to sit this one out.