As with almost any online content, some of the responses to these articles have been amusing. They reduce to "Why are you talking to player of X about game Y?" or "Everyone knows game X is better than Y, you should have talked about it, instead." I'm surprised I didn't see any "SC2 is a dead game" comments. Might have just missed them though. Really liked the, "omg, CLG totally sucks, you should have talked about C9, follow me on twitter, I play gamez," comment (my own editing of language and intent). Felt sorry for the author. As a stated "outsider" he or she very quickly got acquainted with eSports' own variety of vi-troll (hyphen and typo intended).
To the articles, though. I think they suffer a little from trying to pull too much content (i.e. too many articles) out of limited interview material. Further, in this one, I'm not sure if conflating accessibility and ability to compete makes sense. To me, it's not even clear the interviewee was talking about ability to compete in eSports (rather, that was an addition by the author).
The bulk of the article talks about how accessibility (access to the activity) is higher with eSports than traditional sports, due to logistics. The same argument applies to comparing basketball to biathlon (to the majority urban population). Higher accessibility would, everything else being equal, lead to more people playing the more accessible thing, no? I could choose biathlon as a hobby, but due to where I live I'll never actually get to take part in this hobby.
However, moving beyond the article (on the tangent of competitive accessibility), I think one could argue that eSports provides greater accessibility to high-level competition in part due to the faster time scale of development. Basketball hasn't changed all that much over the years. eSports, though, is constantly changing, and while there are cross-overs (ex. Warcraft III and BroodWar players competing in SC2), new games that reset the available competition "resources" are released quite often. Put another way, I play Basketball Revision A, but Revision B is coming out next year (it uses frisbees and kittens!). Means a whole new batch of players can _compete_ in Revision B.