I'm in favor of flexibility regarding the titles, and if HN supported such flexibility, then your decision in this case would seem less arbitrary. But given the rigidness applied at other times, this seems like an odd exception.
I'll point out that the current title does not come close to expressing the level of frustration that developers are currently feeling regarding the Alexa app store. Shouldn't the title give some indication about the real conflict?
It isn't, really. Editorialized titles tilt the balance in an opinionated way.
Most of the time the rule seems stupidly rigid and inflexible.
For more detail, see https://news.ycombinator.com/item?id=10877460.
Or, you can write a blog post commenting on that story, and post the blog entry to HN.