Which is exactly the right trade-off for embedded CPUs, where RISC-V is most popular right now.

If desktop/server-class RISC-V CPUs become more common, it's not unreasonable to think they'll add an extension that covers the needs of managed/higher-level languages like RISC-V.

Even for server-class CPUs you could argue that you absolutely want this extension to be optional, as you can design more efficient CPUs for datacenters/supercomputers where you know what kind of code you'll be running.