What did it cost the Irish team to have Lapira play for a few minutes in a meaningless game? What did it cost the FAI? - Nothing.
Nobody is suggesting it is, or should be the focus of anything.
As Bondvillain said, the little bit of accompanying media focus could have awoken a desire in talented Irish-Americans youngsters to check out their roots one more time. It is a long shot, I'll grant you, but nothing was lost by it. And at the time, who knew? Lapira might actually have been a half-decent player. Isn't a meaningless tour the best time to try out some 'prospects'. Remember there were a few international players who didn't even want to go on this tour, such was the low esteem in which it was held.