YAY..this suggestion would be good if it would change the space between squad members, not the squads.
If players tend to mass-move their army by a few clicks, it must have a downside (AOE weapons/lack of micro)...this idea denies both of it.
This will only help "blobbers" more to "skill" their way forward. Sorry; I don't think players want to see 3 volks or obers attacking (3 clicks only) without the risk of AOE insta-wipe. So we'd have "spacing between squads" guys instead of blobbers...which would only cause more frustration to counter.