It would indeed. A few years ago I posted a topic here asking for some help with some Active Suspension project I was doing at school.
From this I learned the basic principles of the system are to create a balanced weight distribution which provides optimum handling from the vehicle. i.e. under acceleration weight goes backwards which can case understeer as the front tyre patches decrease so the rear springs stiffen. The exact same rules apply for a 3 wheeler except you would only need to stiffen the single spring for the rear wheels. The outcome of this is that the weight will not shift back so dramatically and allows complete control to be maintained.
In cornering centrifugal forces push the weight of the car to the outside which causes loss of grip on the inside and can lead to understeer, oversteer or a slide depending on the conditions (acceleration, braking, surface friction and the weight layout of the car for example) so to counter this the outside springs stiffen and the weight shift is reduced. In this case you have a dissadvantage because you only have one outside spring to stiffen. However (again, conditions depending) it would be worwhil stiffening your outside front spring to reduce understeer under braking.
The best way to design your vehicle would probably be to have a spring either side of the rear wheel whoch can be adjusted as desired. The dissadvantage however is the extra weight you'll have to carry. Also on the link you posted it mentions 3 'cons':
system manufacturing and maintainance costs
and finally, and most importantly in your case,
Its entirely up to you but I wouldn't use it in your case, theres too much to go wrong in an already complex design. Keep It Simple.