Definitely better than OiaL. The MC of that game often came across as manipulative and sleazy, but the MC in Eternum comes across as a better person. It's for that reason I decided to have him pursue a monagamous path and deliberately avoid as much fanservice or alternate paths as I possibly could. It worked surprisingly well, and it didn't require the MC to be rude or even unkind.
Making the game an ensemble cast working together, with everyone having different strengths, and all being relevant at various times also helps, since people still get some stuff to do even when locked out.
Given her frustrating with feeling useless and her wish to seen as being useful by the MC, I think it would be nice if eventually she has to overcome her fear of scary things and gets to save the MC.