Never did buy into that 'new history' foolishness. Let's chase some secondary and primary sources instead and see for ourselves.
Your primary sources do nothing but support my assertion that the Magna Carta was not a revolution when it was written. In England it supported the feudal system, only over time did its ideas manifest into a representative government. The idea itself is not the revolution it is the catalyst. It isn't a revolution until it happens, so a hat tip to our revolutionary founders.

I seem to recall ideas of democracy and Republics dating back to Greece and Rome? Utopia is also a radical idea, but it led to a revolution where?

I agree with you the ideas in the Magna Carta were fundamental to our revolution, but the revolution that actualized those ideas did not happen in the 13th Century.