So if a player in their first year on a rookie contract is healthy, practices and is eligible to play but never plays a minute that first year, are they deemed a rookie the following season if they finally get game minutes the next year? Does being healthy and on the team participating but not playing deemed the same as being injured?
As long as the player is not one of the 13 active players for any team for any game during the season, he would be considered a rookie for the following season. Teams can draft and stash a player in the g-league for the full season and not ever make them active for the season. I'd expect that to become more common if the one and done rule is eliminated.
Is this just speculation, opinion, or do you have a link that provides evidence this is the official rule?
I only ask, because I always assumed it was the opposite and if you were on the 15 man roster, and available to play (healthy), whether you actually played or not didn't matter. The only exception for getting a do-over on your rookie season is if you are injured prior to the first regular season game and remain on the injury report for the entire season.
And this is the main reason why I think it would be most prudent to clear up all the conflicting designations and possibilities by simply making your rookie year the first year you accrue NBA tenure. Whether you are injured, healthy but sitting on the bench all year, or playing in the G-League shouldn't matter. If you accrue a year of tenure, that was your rookie year. That would take all of the confusion out of it, and make it as simple as possible. It would also be the most fair manner to handle it, in my opinion.