Can Retro Prog be Progressive?

I think progressive rock should have two elements to have full credibility to the form:-
1 - It should push/progress music forward - have new or contemporary elements to it.
2 - It should should have a progressive flow to it - not have a verse,bridge,corus format etc.

A true progressive rock musician would naturely have both these elements within his mindset.
Older forms of music can be incorporated into the sound as long as it is presented in a
contempory format.
When Symphonic prog first emerged Classical forms of music were rearranged
so they could be used with rock instruments & was generally a fusion of styles, anyway,
which gave it a contempory sound - as an example.Classical music has a natural flow on the
other hand anyway.
Retro-prog is when a musician takes previously created prog rock music almost note for note or
re-arranges it slightly to create a sound that replicates it.He is thus not going through a
creative process to create his music - basically copying a previous piece of work.If you
listen to The Flower Kings - Retropolis album you should understand what I mean (although not
totally a perfect example).Not quite plagarism but very close to being so.

It has been mentioned above that prog doesn't need pop music's need to keep on re-inventing
itself.I disagree, the modern rock musician would naturally want to push the boundaries (especially prog)
due to/or as a consequence of their rebellious instincts.