If the game wants to succeed as an eSports title, the professional scene, competitions and virtually everything else will need to be ready at launch. They can't hire someone to do this job once the game is released as the initial hype plays a massive factor in determining an eSports success. From a business perspective you don't just organise a tournament and throw money at it, there's a tonne of planning and preparation that needs to be done before something like this can function and thrive, especially with the bar being raised to the level that Riot and Valve have set with League of Legends and DoTa respectively.
None of the gameplay issues you've mentioned prevent the game from becoming an eSports title. FoV is a preference and irrelevant bar a few people who want the game to change to be like the other 'reflex' games they are used to, the server tickrate is a non-factor in this objective (yes I know what it does and no it will not effect the game becoming a successful eSport but the netcode could do with being tightened up a little in general). The scoreboard / kill feed are issues that can affect the quality of commentating and the awareness of spectators in what is going on in the game so these are issues that will need to be addressed in one way or another.
For every few hundred gamers who won't play a game because the FoV is too low, the viewmodels can't be removed, or the bright lights get in the way sometimes, there's thousands that will play the game how it is, will form teams and compete in a professional structure if it is enjoyable, well managed and sustainable. If the money is there, Blizzard can make these things happen and hiring someone now to get the ball rolling is a very promising move for the game.
The biggest factor is money. If the business model of the game isn't correct, the eSports potential is massively limited. TF2 gained so much from switching to a free to play model but it was too late for the game title to be relevant. I'm wondering if OverWatch is planning to do something similar, charging people for the game for say, the first year and then switching it out to a free-to-play game down the road depending on how popular the purchasable cosmetics are. They really need to get their strategy right on this one.
Edit also forgot to add... it's not like people qualified for this job grow on trees. Finding someone with extensive experience in a reasonably new industry is incredibly difficult. The next best thing is to find someone with extensive experience in sporting or similar events but they then need to be trained in eSports, game knowledge and much more. They should have started recruiting for this role a while back :).
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