There is no other entry named 'Purple," so Evan could remove the scandens species name from that entry without running into any conflicts.
Anthurium x ferrierense seems to be as "iffy" as Anthurium x cultorum. Both names are ignored by the Catalogue of Life and both are listed on The Plant List only as unresolved names. If all of the photos in the Anthurium andraeanum entry are in the wrong place, it might be best to simply move them to the generic Anthuriums page, where all of the other photos of unidentified anthurium hybrids currently reside.