I've been a gaming journo for 21 years now, worked for almost everyone (from playstation official magazine to psm, to occasionally kotaku and so on and on) and i've been and still am editor in chief of a few major publications....so i feel i should chime in on this.
Whenever i was asked what i did for a living by some gamer that didn't know me, the reaction to my answer was always: "Oh my god, that's the best job ever!!! You play video games for a living, that's what dreams are made of!!!"
And that couldn't be further from the truth.
Don't get me wrong, i LOVE this job, but there's this weird, twisted, idilliac image often attached to it that doesn't take into consideration a bunch of things.
Deadlines and responsibilities being probably the biggest ones.
The "uneducated" (for lack of a better term) always starts from a place of "i totally want to write a review of this game i love" ...which...is fine, but i've seen so many young kids start strong and fall out of love with the job the moment theyrealize that it is, indeed: a job.
Sometimes you need to cover shit games, overly long ones or games that just plain bore you to death...and, well, you suck it up and do it.
What i'm trying to say here is that i understand how the Edge reviewer felt, i TOTALLY get it (not regarding DS, i'm speaking in general).
However, if he was one of my guys and assuming i couldn't give the review to some other guy in a pinch, i would fire his ass without even blinking.
That's because the job comes with responsibilities and you can't review a product without fully experiencing it.
Now, keep this in mind: i'm not saying that you can't form YOUR OWN opinion on a game in a short time without finishing it, that's totally legit for any CONSUMER. If you've been gaming for a few years, you can actually know even by a lenghty gameplay trailer if it's a game for you or not. But if you are a professional, you MUST follow some rules and experiencing a product to its full extent is one of those rules. You're at the service of the readers, people that span from nerdy nerds to total casuals. What if at the end of the game there's a huge twist? It might not change YOUR opinion on the game...but there might be a reader out there looking exactly for that kind of thing.
Long story short: i like the clause of "don't review it if you don't finish it", and while i'm probably gonna be accused of being an old dinosaur, i believe there's been a downfall in standards when it comes to games journalism in the last decade or so. Especially since personality took the place of professionality in many ways. Also, the mad rush for clicks and to be "the first" is not helping at all in terms of quality of the content.
Sorry for the long post and the inevitable typos, i'm supershort on time due to a family lunch and don't have time to re-read.
Peace.