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EGOL has a very important answer you need to consider, which is what I was really getting at in my second and last sentences. (but I didn't say it well) But to answer about the redirect of every page to the root: I don't have any actual experience of this but I wouldn't think it would be a good thing because the front page is untargeted, compared to the page the visitor thought they were going to get. If doing this was a good idea, there would be no reason for using a 404 page not found. You would instead just redirect all missing pages to the front page. My guess is that as soon as that pattern was discovered, the value you got from it would evaporate. Remember that the whole purpose of all those pages was to satisfy the needs of a visitor. Send them to an inappropriate place and you have failed. (by the way,  google does this a lot themselves. Their own redirects leave a lot to be desired.)