And releasing before the software can do what marketing is already marketing, since we'll just fix with an update, is so common that I'd say it's pretty much guaranteed. It's nothing worth getting angry about, it just is what it is.
No, that's called miss-selling, and can get you a visit by Trading Standards in the UK
Do the people of the UK routinely get technology six to nine months later than everyone else? Because the release it now, fix the software on the fly philosophy is common in the tech industry. Now whether someone would risk releasing something that they knew had hardware problems and just hope for a workaround, I don't know, but clearly they do have software workarounds for hardware problems they perhaps only find out about after launch. Nobody seems to be getting in any sort of trouble for this sort of thing.
Now to claim that applies to not having every single possible feature implemented perfectly and ready to go at the launch, that seems ridiculous. If the pi ends up supporting boot from network, this will be huge because it will further reduce the cost for each board. Getting the cost of a board down but not dealing with the costs required to actually make it run isn't really solving the cost problem. So to whatever extent this is a direction that they are going, I applaud it, even if it isn't ready yet.