Back in the old days of Forms 6i, the development was done on the client and the forms could be run in client-server or web mode. In later releases, only web mode was enabled and the forms developer came bundled with a "mini web server" to allow you to run your forms on the client machine.
From what you say, the latest versions do not bundle this mini web server anymore and require a local weblogic installation to allow the forms to be run for testing.
I've not set this up myself, so I can't comment on it really. Certainly sounds like they are making forms development difficult though.