Quite the opposite - it's the low-end rips that spend a lot of R&D time on pretty GUI's and this type of functionality (that can easily be done in application software like Corel or Illustrator) whilst ignoring the more important (and difficult) things that rips are supposed to do.
Onyx have spent R&D-Time for that Sign & Banner-Plugin
. And after they do not support it anymore, perhaps there will be an other solution in the future, eventually integrated in the RIP-Software itself (as lots of other RIP-software too) ... there are requests of customers for such a functionality to add grommet marks without opening single files in graphics software.
Just one example - I am the first in my country to have an HP FB750 UV printer. Three weeks before the printer arrived I was able to download not only the completed Onyx driver for it but just under 1GB of profiles for it too - that's the kind of thing that really separates a top-end rip like Onyx from the others not easy stuff like grommet marks.
Is the printer up and running at your location? Have you tested that driver until now?
Driving a FB750 is not so different to driving a FB700, but there are a few modifications with print modes. This could lead to trouble with the first version of a new driver.
Very often when a new model which is based on an old one is released profiles are just converted from the old machines. And even if Onyx regularly delivers a lot of profiles, standard profiles are only second choice.