At this point Sevilla is a sure target towards LaLiga 2 because it's clear that current team have no desire to actually play football and save this club for a real disaster that is relegation. It will also be the first time in club history when they will face this situation and the fact that they are in debt over 800 mil $ makes me thing they do want to go to LaLiga 2 and re-build a fresh team there under a new project. 
Yes indeed, if Sevilla continues to experience bad results like this, then of course it would be better for Sevilla to be relegated. Because, even though last season and this season Sevilla still had bad results in La Liga, at least last season Sevilla still got good results in Europe. But unfortunately, this season Sevilla have really failed in Europe and also in La Liga.
Also, about Ramos joining back to play at Sevilla also doesn't seem to have a positive impact on the team's performance and yes, perhaps Ramos return will actually make the team even more devastated. Therefore, if there is a statement like what you said, it is indeed true, that Sevilla deserves to be the team that was relegated. But indeed, at least expressions like that are just a form of disappointment about Sevilla this moment because after all, Sevilla still has the ability to stay in La Liga.