Whole hearted upvote. Perhaps a toggle to reverse the 'single click vs dbl. click' behavior could make this function more useable for some users.
As it it, I just can't find a positive use for this feature. There is no screen resolution I work in that makes the 'microview' useable for me. So instead, this is a liability and feels clunky.
In addition to a toggle option for disabling 'microview' perhaps the functionality itself should be revised and updated to work better with multiple screen resolutions. The concept may be great, but the usefulness just isn't there.