Virtual GPUs are for trying. Bare metal is for shipping.
Virtual GPU instances are useful when a team is still exploring, testing notebooks, or proving demand. That is not what GlassPearl sells. GlassPearl sells the point where GPU work stops being casual and starts being infrastructure.
A bare-metal GPU server gives one team the whole physical machine: GPUs, CPU, memory, storage, NICs, root access, and the fabric plan. No hypervisor tax, no noisy-neighbor story, no wondering which part of the shared platform is slowing the run down.