Well, that's a different concern from your previous issue.
Yes, it means that you will be consuming a license. By doing that you get the same UI, you don't need to later install a different product in order to swap roles, you can also be a reader for one model and an author in another. That seems to outweigh the size so I have trouble with your argument that it's a "crippled" outcome.
In case you haven't noticed, PCS, WebEA, and Prolaborate are being pushed by us as a preferred reader method over EA lite. It will have a different UI, but a much simpler one. It also doesn't require any install for on the client machines. Of course it's still not free.