They got rid of both programs (Mens and Womens) in 1990. There are quite a few local Ohio senior players who played there so they have told me some of the problems. Its a shame because the program was a good one back in the day and used to draw a lot of local kids to play there. Also, the team was ranked and had players that went on to play on the tour back in the 60's and 70's.
Apparently when the school announced dropping the programs back then, they indicated it was because they couldn't budget for the program anymore. Also, they didn't even tell anyone tell right before school let out, leaving all the players high and dry. Some transferred to OSU and Miami....A bunch of tennis alumni got together and raised money to help support the program, but the athletic department at the time said they didn't want it and wouldn't accept the money. They also cut a number of other sports around the same time such as mens soccer. The athletic department has been firm in not reinstating tennis on either the mens or women's side.
I believe that in the late 80's many of the MAC schools were having issues with competing at the I-A level (money, attracting athletes to big sports, etc...), and there were challenges by some in the conference to possibly dropping to I-AA. For the MAC, this would have meant less opportunity to support cash cow sports like basketball and football with attendance, support and opportunities to compete at a level that generates income for the athletic departments. There was a decision within the conference to not drop to I-AA, and many of these schools invested in their money making sports, sacrificing smaller sports. They also of course had to support women's sports which as of 1982 they didn't have to do, so this added to the budget strain. Many of the MAC schools have dropped tennis (Miami, Akron, Bowling Green-Bowling Green was known for its mens tennis team back in the day as well). I have not done the proper research, so take this with a grain a salt, but it may help you go down the right rabbit hole if your interested in looking into it.
Whats interesting to consider is that with the demise of tennis programs at colleges in the state of Ohio, the Ohio State tennis team benefitted and has been a top 20 team since 2000-2001. Ohio State has its pick of the best players in state in within the area around when you consider WVU, Pitt, and UC also dropped their tennis programs. All these programs dropped between 1990-2000.
Ohio U, Miami, West Virginia, and Pitt should definitely all have tennis mens tennis teams.