This could well be "true" as it's been a long-considered significant EC among the SAs. I'm not aware of them sending out "unsolicited application packages."
And it makes sense that the Eagle Scout completion would be a more reliable predictor of completing the SA "race" once inducted.
So issues here, relative to the candidacy process, would seem to include:
1. Allegedly being invited to participate in the candidate process (Anyone(s) verify this?);
2. Being given credit/points in the EC portion of the whole person/scholastic qualification process. Some have said it is equivalent credit to Boys State;
3. Beyond receiving points, there is no special consideration for appointment given to Eagle Scouts;
4. IF an appointment is accepted, the likelihood of completion is higher.
It would seem the key issues relative to the candidacy process would be #1 and #3. Can anyone verify #1? I've never heard this one before. Eagle Scouting is a tremendous achievement and clearly a meaningful contributor to candidates. Perhaps it merits emphasizing however that beyond the points contributed, it is not a "magic bullet" or path to appointment. It is a significant contributor.
NESA's stats are impressive and worth noting. However, they imply that Eagle Scouts may have some special, implicit advantage in receiving appointment. There is no evidence of this. In fact, it may well be that successful Eagle Scouting is symptomatic (not causal) of a higher degree of success, i.e. Eagle Scouts BECOME Eagle Scouts because they are focused on appointment to SAs. And if one wanted to play the game of cost/benefit considerations, it might be argued (I am not, btw, contending this is true) that it is a very costly, high risk activity, i.e. those many hours might have been devoted to other activities carrying equal or more weight in the process. Of course all this presumes, wrongly!, that the reason for pursuing activities is to score WP points rather than because of the love of scouting or alternative activities.
Either way, Eagle Scouting is a great thing, and merits careful analysis of what it means relative to this process of interest-to-candidate-3Qed-to-nominated-to-appointed-to-commissioned. I'd offer that it shows both capacity to persist and prevail on long-range, challenging goals as well as perhaps either or both a pre-determined interest in SAs and/or the type of disciplined, structured process implicit in this form of education. In other words, both "chicken and egg."
From POV of the SAs, what is crystal clear? Academics is THE MOST IMPORTANT factor, and w/in that component, standardized math scores.
And simple answer to navy2016s question, despite what NESA might subtley imply: No