Surprised to see that Prestwick is in as a W routing from Knock as obviously it is a Ryanair base. That route is in the system from the start of June to the end of September only for now, whereas the other routes are bookable up to the end of October. The fact that there are flights on Fridays and Sundays should work in its favour. Possibly, as it may run for such a short season, the flybe route to Edinburgh (which runs for seven months) could be able to survive alongside it - although we will need to see whether the results of the strategic review at flybe have any impact on their operations at Knock.
When you look at where Eindhoven is on a map it does seem to be a perfect location for an inbound tourism route to Knock. Similar to Knock itself, it's not that there will suddenly be thousands of people from Eindhoven flocking to the West of Ireland but it is a good centre point for travellers from much of the Netherlands, Belgium and western Germany who may use the route.