If you're serious, then go back and reread the article and then read the thousands of posts on this very forum about performance problems, not being able to write the code they need, or recovering from a crash, accidental deletion, or accidental overwrite.  Installing SQL Server correctly is just the tip of the iceberg and I can guarantee you that, although it may install well enough to work (which people mistakenly call "correctly), it doesn't install correctly with just a couple of clicks.  From personal observation, most people that think SQL Server is easy fall into one of two categories... they either know their stuff about SQL Server and don't need anyone else or they don't know their stuff and think they don't need anyone else.  That latter notion even applies to many DBAs that I've interviewed over the last 10 years.