But it is good to know what is coinbase's moral compass.
They did the same with Bitcoin Cash, or maybe worst... (see stories about when they first introduced bitcoin cash)
That's a pretty bold allegation. Do you have any evidence that this is the case.
If you need many examples, look for Reddit threads that talk about Coinbase created right after Bitcoin dips.
Any serious software engineer knows about the CAP theorem.
It seems reasonable that these are genuine mistakes. It seems ludicrous for Coinbase to implement order cancellation so that they can do some risk-free hedging when something like that is ripe for some serious whistleblowing.