I would say the funding differential can be even bigger than that example. I can't speak to the women's program, as I don't have insight into as I do like the men. I can't believe that they are any more underfunded than the men though, yet we are starting to see vastly different results. That's telling.
It's simple investment that manifests itself in different ways. Take USC for example. They started a women's lacrosse team 5-7 years ago. They are now ranked. Why? Because they fund the program to the fullest amount of scholarships, coaching positions, and gave them nice facilities. The athletes are treated very well while on campus and have everything they need to be successful, including big recruiting budgets for the coaching staff and all the perks that come with being an athlete at USC. There is this football/basketball and everything else thought. Big time schools don't think like that. They think let's win championships in everything. Let's be great in everything or let's not do it. I have heard the USC AD say as much when they started their women's lax program. To paraphrase, he said, "we will fund the team enough to win national championships". All over their campus they have a succinct message- We Play for Championships. It isn't a slogan or words a coach who is no longer there came up with. They mean it. More importantly, they fund do it.
There is a video of what OSU's men's lax team has access too. Ash just implemented a 24 hour café the football team will have. OSU's lax team has had that for 5 years. ND's men's lax team flies on chartered jets to games, as do others. This is the type of thing we are competing with.
Longwinded answer, but lack of proper funding compared to peers is seen at every level, from assistant coaching credentials, to the players recruited, to how they are trained, to the expectations of the team and the head coach. What we see at Rutgers right now would never be acceptable at a school like USC. But funding is the backbone of it all. Can't expect to eat Kobe beef on a McDonald's budget. Again, I don't have insight into our women's program, but from what I can see, we aren't reaching our potential with the budgets they do have. We lost to Monmouth and get blown out routinely by good teams. It's a problem.
Having said all of that, VERY positive changes are occurring under Hobbs. That dude gets it. We aren't waiting for the B1G funding to kick in. It will be great when it does, but the train has left the station already.