So is it considered as topic derailment if we think ahead and point out the negative consequences a hack could have for a platform?
As long as you're willing to accept that people will also think ahead and point out that they don't care about the "negative consequences" to a company at the expense of consumer benefit. But then in that case you will see that it becomes a pointless cycle where there is no constructive discussion other than "this is bad!" and "no it isnt" and "yes it is".
Piracy in this case is a bogeyman. It is an abstract concept used by the argument to justify why consumers should "suffer a little bit" for the "greater benefit". The truth is there is no greater benefit. As a 3DS owner, right now I am unable to play Japanese games on my US 3DS. After it has been hacked to break the region lock, I will be able to play Japanese games on my US 3DS.
I do not expect the 3DS market to collapse and die after it has been hacked, because the DS market did not collapse and die after R4s were manufactured everywhere.
I play lots of PC games, which are the easiest to be pirated anywhere, and yet the market does not seem to have collapsed and died either.
The 360 was hacked and piracy was rampant long before the Wii or PS3 were hacked, yet it remains the strongest platform worldwide.
Last of all, Smartphones are also regularly jail broken shortly after release, and there's a ton of piracy there too. Yet if you ask any smartphone user if they feel that a device getting hacked has a negative impact on them, they would look at you like you were crazy.
So yeah.