Is Benjamin Graham Value Investing Not As Applicable in Today's Markets?

What are your thoughts on the following article reviewing Jeremy Grantham's recent letter to investors about the applicability of value investing today?

Dear causaldiamond,

Thank you for your forum post!

Graham himself wrote:

"The underlying principles of sound investment should not alter from decade to decade, but the application of these principles must be adapted to significant changes in the financial mechanisms and climate."
Benjamin Graham, Introduction, The Intelligent Investor

Serenity has addressed Graham's own recommendations on tailoring his quantitative rules for current interest rates, and has always adjusted Graham's qualitative factors for inflation. The above article criticizing Value Investing does not take this into account.

Serenity has previously published an article about such common misconceptions about Value Investing.

The below Buffett quote has been on Serenity's front page for a long time now.

"A roadmap for investing that I have now been following for 57 years. There’s been no reason to look for another."
Warren Buffett, in his 2008 foreword to Graham's book Security Analysis.

Graham first wrote about Value Investing 80 years ago. Buffett's predecessors such as Irving Kahn — and successors such as Seth Klarman — have endorsed Graham's framework just as emphatically.

So could principles that have held true for nearly a century changed dramatically in the last 9 years?

"To invest successfully over a lifetime does not require a stratospheric IQ, unusual business insights, or inside information. What’s needed is a sound intellectual framework for making decisions and the ability to keep emotions from corroding that framework. This book precisely and clearly prescribes the proper framework."
Warren Buffett, in his preface to the 4th edition of Benjamin Graham's book, The Intelligent Investor.