The two factors that are being pointed out that makes the college baseball experience difficult are:
Number of Games; that is the more games the more missed classes, travel, etc.
Travel Logistics; The greater the distances that teams travel the more time off campus which tranlates into missed classes, study time on the road (which is always tough).
These two factors effect all forms of college ball (D1-D3, NAIA or Juco). It is difficult to measure the impact without doing your due dilligence.
What we found out was in the spring it was tough for our son to carry more than 12 units. This translated into an extra semester to graduate.
The impact of scheduling can be reduced based upon the number of games and the length of schedule. Generally, northern schools start latter which compacts their schedules. There is also a tendance for northern schools to head south for at least a week (sometimes longer). This can only mean more time off campus. D-3 schools generally finish a week before D-2 which finishes a week before D-1 (scheduling of the NCAA tournaments). Some conferences have championships some don't again this impacts scheduling and time out of the classroom. The timing of when a schools schedule concludes can tie into when finals occur which again can have an impact.
Geography and conference participants are the major factors which impact travel. A D-1 on the west coast has much longer travel than say a MAC school in Ohio. What you can not do is assume that travel is impacted by what division a team operates in. My son's D3 conference had huge travel with many a 14 hour bus trip. Also, you can not assume that teams will fly; some trips they may and some they may choose a bus/van.
My point is get out a schedule, see who they play and then do your due dilligence.