The answer is "YES" - I would rather be without any anti-virus than be scared witless by everything, all the time, and being told that everything else is a virus, regardless. Because, let's face it, they can be infected at some point in the future, so we might as well just delete them now and get it over with.
Every other anti-virus in the world seems to think that those files are OK, but not Webroot security - I write Software for a living and I like compressing my software with UPX - Everything I compile is OK until compressing with UPX, and all of a sudden, it becomes a virus, and it gets quarantined or deleted - So one second the file is OK, the next it's a virus.