This is more of a hardware implementation choice than anything else. On top of such hardware we are still going to implement "digital" systems of qubits (or qudits).

I work at the Yale Quantum Institute, and people here are some of the bigger proponents of continuous variable quantum hardware. It is a fascinating design choice, but the final goal is the same: make something error corrected and qubit-like.

The reason for this is that you need to switch to digital if you want to be able to scalably correct errors (there is no such thing as scalable analog error correction).