When giving examples, there is no need to blunder through every possible case of Table Scans before "realizing" MS SQL will only use the index scan on the column that has been indexed.

Although this is the way a beginner would do it while playing with MS SQL, there is no need to write it in your article. This only distracts the reader. It's nice to hear a different flavour of english but in many cases the meaning of your sentences was actually incorrect.