Ensures the pushrod ends and adjusters don't get smoked. Without pushrod oiling, it happens, especially with cheap roller rockers. I ran a set of alum prw 1.5 roller rockers in a 318 with solid pushrods and the ball cups showed significant wear vs my now hollow rods that still look like new.
If your rockers don't give a place for the oil to to from the pushrod, the amount of flow will be hampered quite a bit, and won't be an issue.
With a cam that small, it's unlikely the engine will be running revs where oil on the crank and rods will be a concern. Besides, the crank will have most of the sump whipped up anyway.. Any small 'extra' amount won't amount to anything measurable.
Might be a different story if you are planning to run a scraper or whiz bang oil pan - but that cam suggests it wouldn't be needed anyway?
More details about intended use and other parts of the build might clarify though.