What are you talking about?
If a seller sells you random junk that causes safety issue, they are liable of the damage like the OEM would if their product was bad.
Then, if the seller is in a jurisdiction where you can't hope to sue, then it's either your problem for picking this random seller on their website, or we should make it Amazon's problem to feature this kind of sellers in the first place. Surely the biggest retailer on the planet could afford vetting businesses selling on its platform to protect consumers' safety.
In any case, the fact that Bosch's ecosystem is closed offers no additional protection whatsoever, as shady sellers already sell counterfeit components (that may or may not work at all).