After reading the rule - I still can't wrap my head around it. Even LL has a clause "Slide or avoid".
NCAA stating that on ANY force play - the runner MUST slide or alter running path away from fielder to avoid interference and that the batter runner is also out - regardless if the DP could be made - seems in my opinion overkill on the side of player safety.
While technically the correct call, I would expect the NCAA rules committee to use this as an example and reword the rule.