Interesting observation of mine regarding full suspension nomenclature-

[cbcbd]

This is my favorite kind of suspension

 

[mondeo]

An example of a rear 4 link suspension (no shocks/springs shown):

http://www.youtube.com/watch?v=E6s88d2FbPE

Similar in number of linkages, except the axle on a bike stays (thankfully) parallel to the frame (front triangle). My point is there's still as many links by your definition, yet it's still called a 4 link. I'm not saying you're wrong, rather pointing out that it's not necessarily just the bike industry that's been in error all these years.

You're right, it isn't just the bike industry.

Although I think it might be 4 links per wheel...damn live rear axle. Bump steering all over the place.