To be fair, it's not yet clear from the courts perspective what constitutes a derivative work in the world of software. There's a not-insignificant possibility

To be fair, it's not yet clear from the courts perspective what constitutes a derivative work in the world of software. There's a not-insignificant possibility that a future court decision will give a definition for "derivative work" in software that erases the difference between the LGPL and GPL. IMO, it's even somewhat likely. It's entirely unclear why the legal system would care whether something is statically linked or dynamically linked with regards to interpreting derivative works in software, so the question would likely boil down to simply "does linking a library make the application a non-fair use derivative work of the library"? If no, then there is no difference between the LGPL and GPL. If yes, the status quo remains.