The single point of failure is still coinbase regardless.
Discussion
Yes, true, but seems a way to not pay Counbase’s higher buy/sell fees. (Though if you hold long enough, the ETF fees will exceed the Coinbase fees.)
Both are an IOU. Holding on coinbase you at least have the ability to collect on that IOU by removing it from exchange. ETFs are a walled garden and really only should be used by speculators who don’t want underlying freedom tech.