Well, it's nothing new from what it's been like the last few years.
Other than the 2 acts with complete control of their work, their groups are just not "in" anymore. JYP is clearly struggling to make already debuted groups gain back interest, or make people interested in new groups (like the new BG so far has no hype..).
It's like JYP as a company is just not seen as "cool" anymore for a lack of better term. I think them being unable to keep up with other companies with top GG(s) has hurt their image/respectability, especially considering they were known for popular GGs.
And as for these groups, at this point it's hard to get rid of this "uncool, they USED to be good" staple, even if they release a good song. JYP has already given them such unpopular/disliked songs that ruined people's perception/image of them too much. They'd need a very good team with new ideas and ways of building back hype, and JYP hasn't been able to do that.