Not necessarily. The commas are probably being used to indicate pauses, not as 'parenthesis' around a clause.
For what it's worth, I think that the commas are desirable, even if perhaps not grammatical essential, in the version I suggested. Try removing the commas and then reading it out loud. I would think that it will either sound odd (and be quite difficult to say) without any pauses where those commas are - or else you will automatically/subconsciously insert those pauses (pauses which. in the written form, would/could be represented by commas).
Whatever, I think we are agreed that the material in question could/should have been written more clearly.
Kind Regards, John[/QUOTE]
