I just don't see the relationship between government overstepping the mark... and buying a proprietary product form a company you respect, because you want to use the product and are willing to sacrifice the desirable but non-essential quality of unfettered access to its innards.
...OK, actually I do see the connection. The suggestion is probably that if the technology is not totally open, you don't know how much power you're giving away (the manufacturers could be cooperating secretly with the authorities). But if you really feel like this, all you need to do is refrain from using your iClosedDevice for any type of work or communication that you wouldn't trust in the hands of the manufacturers/authorities.
... And OK, I see the point that we need to support the alternative methods or else their won't be any when we need them. It's just the either/or sentiment that bugs me.