Definitely agree, in fact we tend to use the term "massive consolidation", where we run thousands of VMs on a single server, thus saving costs. Unikraft unikernels are a perfect fit for this since they consume little memory and boot relatively fast. In early work [0] we were booting as many as 8000 hello world VMs/unikernels on the same server on the Xen hypervisor. More recently we have been booting 1K NGINX Unikraft images on a single server.

[0] https://dl.acm.org/doi/10.1145/3132747.3132763