The full paragraph shows they aren't necessarily referring to Rossi's design not being able to launch from a standing position, but the newer generation of jetp

The full paragraph shows they aren't necessarily referring to Rossi's design not being able to launch from a standing position, but the newer generation of jetpacks in general. It's not very clearly written though, and does make it easy to assume they are referring to Rossi's jetpack along with the others they are lumping together. There are a number of new jetpack-like designs that are remarkably capable, but all have very limited range and most have only very low-altitude flight envelopes. Yves "Jetman" Rossi's winged jetpack is definitely capable of such a feat, but his flights have always occurred under highly controlled and well-coordinated circumstances and in sanitized airspace. They are also very high-profile in nature and require a mothership to launch from, such as a helicopter, or at least a very high point to leap from.