That would not appease me. They should send you a new ESC and let you return the faulty one. Especially considering what you paid for this rig. Stay on them. Let us know when to start the boycott 😉
Yeah, if HW doesn't resolve the problem I would be so pissed. It's not like Kraken doesn't have more ESC's to send out to replace the bad one. I wouldn't have hung up the phone with them til they made it right or hung up on me, in which case I'd be filing a claim with PayPal.