Should the Army Football team waive height and weight standards to have a chance of being a great football program?

No. Those kids are there to learn how to be Officers. Football is irrelevant and shouldn't be a variable in any decision making whatsoever.

Interesting article:
https://www.washingtonpost.com/sports/colleges/a-losing-game-navy-linemen-must-get-smaller-for-life-after-football/2016/03/14/2077c3f6-e482-11e5-a9ce-681055c7a05f_story.html?utm_term=.ca2fd115cce0

I would prefer they not have a football team.