Reading the article makes it very clear that they are not using the word in that sense.

Even in just the title, I thought of this as "player" as in the context of "team player" rather than that particular slang.

Edit: I've linked this to a few friends and all of them thought of the slang! Go figure. :)

It has more than one meaning. see: https://en.wikipedia.org/wiki/The_Player_(film)

I wouldn't expect anyone to read "player" in the blog title and read it as the meaning in your link!

Seducing your coworkers to your way of thinking is part of the job in my mind.