In researching agents, I've seen a few where their Publisher's Marketplace page is predominately made up of Digital sales. I know little about the contractual part of an Agent's job, and seeing "Digital" only (even with a few senior agents) caused concern.
Should I be?
They're making deals and a lot of deals are happening digitally these days.
Those may be just the most recent deals an agent has made, or more likely, the publisher reported those deals, NOT the agent.
A colleague of mine some years back had purposely pulled back from listing deals on Publishers Marketplace (I can't remember why.) She sold a small book to a digital only publisher, who promptly posted the deal to PM. My colleague was pretty ticked off because it now looked as though that was the ONLY deal she'd made that year.
She then had to post all her recent deals so writers like you would not be misled. However, if the agent (and there are some still) isn't paying attention to PM, s/he might not even know those digital deals had been listed.
It's easy to forget that a LOT of agents came into the business before it was de riguer to announce every deal and have a robust public presence. Many of the best agents I know are still very uncomfortable with this New Visibiltiy.
Don't make assumptions here.