Día might be gone, but actually it did get replaced.

Holy Sanctuary looks baseline like it does more damage than Glare/High Glare does. It just has a bonus of saving damage lost due to healing GCDs.

So in content with 0 concernable damage (because the Tank and DPS will outheal all of it without your help), you’ll still be pressing Holy Sanctuary when you would normally be pressing Día. But it’s on a charge cooldown instead of a countdown.

Also, I suspect this is actually the L50 build without any of the higher combat adjustments.

Because it looks like this is the kit that you have at lvl. 50, which is ALL the buttons whereas the combos come in later.

Because High Glare/High Cure, and Glare 3 seem very sparse for 60 more levels.