For a short period they did have the Ability Damage icon missing, and it was easy to tell which accessories had which abilities. But that also came with other issues in gameplay. They made a shadow update that uploaded the new image and you were able to tell. However, the very next maintenance, it reverted back to the old way.

Here is a quick tip for equipping Accessories.

When you first equip an accessory to a Kami, it doesn't confirm the stats with you it just equips it. What you can do is keep an R or N accessory of each element in your inventory. Then when you go to add a new accessory to a Kami you can first equip the N or R accessory, then go to replace it and find the exact one you want to add. It's an extra step, but it works and will keep you from wasting gems equipping the wrong SR or SSR Accessories.