This Technical support person appears to have no clue that the traffic is only blindly forwarded, there's nothing on the server itself that generates the "abusive traffic". Nothing illegal can be found on them (if it's just Tor installed and configured as an exit relay).
To be honest, I don't get these hosting providers that are so scared of brute force and layer 7 attacks. These small hosting companies behave like back in the 2000's when everything was so scary, when an IP address usually meant one person or one physical address to bust the door.
Rather than changing from Exits to middles, try to explain to this small hosting company what Tor is and how it works. There are plenty of Tor exits in Romania, because it has very good internet, show them some AS number examples from the same country so they will grow some courage that they are not the only ones. Also tell them that there are many thousands of servers worldwide, most of them within the European Union which RO is part of. And leave the Exits to Exits ;)