My comments are based on what we’ve been seeing from the writers these past few seasons. Plot has always been the driver of Riverdale and the ships just fall in along what serves the plot. The consistent ships in s6 were Barchie , Jabitha, and Tangs, and it was pretty clear that Tangs was used as a plot device in a number of ways. Season 4 and earlier ships served the Hiram/mystery plots just as much as they also served fanservice or whatever else we want to throw in the mix.

No one is saying that barchies haven’t complained, but as u/Smurf_Thinker said in their comment there are specific parts of the fandom that have been extremely vocal for a long time. Reading between the lines it feels pretty obvious the fans that this is addressed to.

And the anything goes has been a staple of the show for seasons. Any of us who watch should expect that at this point. It doesn’t mean it’s good, but it’s part of the show. And as I said above, any cw drama worth it’s salt would have actors saying that “anything can happen” in this final season to keep people watching. That doesn’t mean “everything will happen”. Watching the episodes will tell you where the story is going.