The boat came with a brand new trampoline that the previous owner never installed.
If it's a Hobie brand tramp, then it does for sure. Maybe not on aftermarket tramps.
If this is the case, how difficult is it to add teh eyelets? Has anyone upgraded a standard tramp before?
The OEM grommet is sized (large) to accommodate the shackle on the jib block. You could live with something smaller and use a Spectra lashing from the jib block to the wire (which could also be Spectra) running transversely under the tramp.
Setting a small grommet manually with a hammer is not a big deal - you can buy kits at most any hardware store. Setting a grommet the size of the OEM one requires power equipment.