The obvious solution is to allow a trainer/coach to suit up in emergencies, teams travel with enough personnel that I'd be shocked if someone isn't as capable as most of the EBUGs.
And I do think keeping talent playing rather than coaching is one of the primary reasons they don't change the rule. With my rule change, if you're a 24 year old ECHL goalie how much money would it take to accept an EBUG "trainer" job? How would the cap deal with that could also be an issue.
Each team brings their own third goalie when it really matters, in the playoffs, and yeah, sometimes it's one of the coaches or trainers, but more often they just bring somebody who plays goalie a lot in his free time, just not at a professional level.
And I do think keeping talent playing rather than coaching is one of the primary reasons they don't change the rule. With my rule change, if you're a 24 year old ECHL goalie how much money would it take to accept an EBUG "trainer" job? How would the cap deal with that could also be an issue.