These are considered exhibitions, if I remember correctly.
This raises the question: why can't baseball play a split schedule the way tennis does?
Rather than try to play games in the north in February and early March, September and October would provide better weather. Keep the number of games and number of weeks of play and practice the same, but have some of those weeks and games in the fall as well as the spring.
Right now CWRU tennis plays in September and then from March thru May.
I believe the B1G has suggested this at the D1 level. I am not sure how I feel about it. The fall is about learning your team, and seeing what the new guys can do. Also the Freshman are working on to adjusting to college, not traveling and trying to compete. I know the football players and other fall sports do it. Your team in the spring might not be the same team you had in the fall. At some of the schools you lose some players to academics after the fall semester.
Would this happen nationally or by conference decision. I am not sure the schools in the south and west would be interested. Would the schools from the cold climates be at a disadvantage, playing only 15 - 20 games in the spring, before starting regionals? You would also lose some of the dual sports athletes. A player could no longer play football and Baseball.
I don't necessarily disagree with you ADL, there would just be a lot to work out.