It's easy to beat up on Joseph Kosinski. That's what he gets for having TRON: Legacy for a directorial debut. If you take lead on a property with a heavy geek investment, you're going to take some heat. Doesn't matter if the movie is good or bad, it's never going to make everyone happy, and so you're already facing an uphill struggle with anything you do after. That's why you can fully expect plenty of fanboy groaning and moaning at the news that Kosinski is now attached to direct the new The Twilight Zone movie.
Let's try to look at it objectively, though. What have TRON: Legacy and Oblivion actually shown us? That Kosinski can produce next-level visuals. He can take clunky scripts and realize them using a remarkable sci-fi palette. And the scores to his movies tend to be pretty cool, as well. Both of those movies contain large chunks of really excellent filmmaking, even if it is for their technical proficiency more than anything else. And that actually makes him an appropriate match for something like The Twilight Zone-- assuming they're keeping the anthology format.
If Kosinski is at his best in short bursts, he might truly excel at a film that's designed to be segmented. Unfortunately, we don't have any confirmation that this new film, produced by Leonardo DiCaprio's company, is going that route for sure. If they do, however, Kosinski might not necessarily be a bad omen-- especially if the stories being told are high concept. Yes, the storylines in the 1983 Twilight Zone: The Movie emphasized smaller, character-driven plots over grand spectacle, but it's not like the show didn't also go down that route from time to time.
Is he a better choice than the priorly attached Matt Reeves? Not really. Reeves is superb at both intimate character moments and complex visuals, but he's off making Dawn of the Planet of the Apes, so that ship has sailed. It just doesn't seem like there's a justifiably immediate concern that the newly commandeered The Twilight Zone ship will unquestionably sink now that Kosinski is on board. Let's find out more about what's on the page before we freakout about who is behind the camera. He is unquestionably a creative thinker (check out the below for proof), he may just need a script that plays to those strengths.