"Ten Commandments"... the ultimate guide to human morality?

Below article is not written by me, I got it from a website (see the link at the bottom of the article). I came across it as I was browsing for fun... and to me, fun doesn't necessarily have to be "happy" or doing meaningless stuff. "Fun" should also be intellectually challenging, thinking outside the box. And tonight I decide to explore some religions' problem by googling it, and read some articles about them randomly. This is the most interesting argument so far, about the Ten Commandments, as I grew up with these and was brainwashed that they were the ultimate guide to human morality.

Here is a part of the article:

"The Ten Commandments have been presented as the ultimate guide to human morality. But a close inspection reveals that only five have a meaningful impact: do not steal, do not perjure, do not kill, don’t commit adultery, and honor your parents. Just as revealing is what is not included:

• No proscription of slavery
• No proscription of child endangerment
• No proscription of bigotry
• No proscription of racism
• No proscription of sexism
• No proscription of classism
• No proscription of blackmail or bribery
• No proscription of discrimination against LGBTQ persons
• No proscription of incest
• No proscription of torture or terrorism
• No proscription of rape
• No proscription against the mistreatment, exploitation, and relocation of native populations
• No command to treat animals humanely
• No command to take care of the Earth’s environment
• No command to help others in need
• No command to settle disputes peacefully
• No command to distribute the Earth’s resources fairly

It should be obvious that an all-knowing, all-wise, all-discerning, supernatural God could have devised a much better set of rules for mankind, a set that would have placed humanity on a more peaceful, loving, and kind trajectory that the one we have experienced."

Source: http://www.patheos.com/blogs/friendlyatheist/2014/08/26/40-problems-with-christianity/

And I totally agree... that the commandments are NOT "the ultimate guide" and saying that those are from God who is (supposed to be) an all-knowing, all-wise, all-discerning, supernatural being, is ridiculous.