This show is like the anti-Survivor for previews. Survivor goes "Look what happens next week" and it's always taken out of context. Bachelor goes "Look at everything that happens next week apart from the rose ceremony," and then does exactly that.
And then in the show they still do the dramatic reveals. Like the sumo suits, big dramatic reveal, which might have worked if they didn't show the sumo suits in last week's preview, all the ads, and every single "coming up next". Bad luck if you don't want to know exactly who gets the single date, who's on the group date, and who wins the extra time from the group date tomorrow.