A company that sells parts of liable for faulty parts, not user error, though I'm sure a full legallese disclaimer will be included with the kit.That liability is only covered if detailed instructions are included and very clear disclosures, handling precautions and the potential catastrophic dangers when using 3S lipos.
And I'm not gonna even get into the printed plastic boxes, cuz that's just crazy IMO. But there as well, liabilities are gonna fall on the designers of the plastic enclosures.
If you buy a chainsaw chain, and it flies off, injuring you.... Who is liable? If a shoddy link caused it, they are.. If you installed it wrong, you are.
Neat lookin Hana box tho.