In the recent post, 'Twenty Feet Too Far', the comments suggest a general failure to understand how movement fits into the game, movements relationship with ROF and the cause of some of the "problems" enumerated in the post. For a more in depth review of Movement & ROF a blog search using those two key words should result in more posts than you'll want to read.
Herein I will endeavor to clarify the situation moving from the specific to the general. Much of the concern (and the follow on spate of "solutions"--like adding bunkers) is the result of the consensus view that World Cup pro matches were too often long drawn out dull affairs, especially those overtime points. And there were in fact more of those sorts of points at this most recent World Cup. But the assumption being made--that the points were like that because the players couldn't move--is mistaken. Likewise the fixes predicated on erroneous perceptions.