That's because Daisy and Peach have literally no difference when it comes to damage, hitboxes (except for their different taunts and idles), and move set. Daisy Bomber is the same as Peach Bomber in terms of damage, hitboxes, and knockback. The only thing different is that they have different effects and aesthetics to match the character. Therefore, we redirected every one of Daisy's moves to Peach's, although Daisy Blossom should be its own thing.
Well, their moves ARE literally the same. Same hitboxes, same damage, same knockback. Tis a shame Daisy is a glorified skin of Peach. I see what you're getting at, but since Peach Parasol = Daisy Parasol, talking about the former is applied to the latter, meaning we'd have a paragraph under "In SSBU" that would give a description about how the move works in that game and put in "Daisy Parasol acts virtually identical to her echo counterpart".
The way I see it, one page with a SSBU description about the move and saying Daisy Parasol is the same is a lot better than having two separate pages with the same description. If you want, we can turn this into a poll and ask what the other users think.