Im not an electronics expert - so just an entertaining opinion.
I assume this will be a low voltage product and therefore I doubt it is an earthing problem?
I suspect that this is a relatively cheap generic tablet wrapped-up in a cool B&O shell to make the product cost-effective? I think you are seeing a simple MTBF issue which you are on the perceived low-end of that failure rate.
Look at it another way. I believe I see that the MTBF on all my families iPad minis (Mk3 or 4 - not on 5 yet) of 2.5 to 3.5 years. This is not a niche product with multitudes of units sold compared to B&O's tablets. It does not make it necessarily better despite higher critique and units sold.
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