It seems like quite a light punishment for selling such dangerous products that could literally kill people. The dodgy e-bike batteries have already been linked to several fires.
bigclivedotcom takes apart some of the Temu stuff on YouTube and some of the electronics is atrocious.
They sell adapters to turn oil cans into silencers. Each one should be a violation of the National Firearms Act and subject to up to a half million dollar fine https://www.atf.gov/media/25071/download Nota bened; these are not per-se illegal, but you need to sell them through a firearms dealer and pay for an ATF tax stamp and only in states that have not banned them/all NFA items.