While some macros like a Raise macro can be useful, combat macros tend to work against you in the long run. To be fair I also used them in the beginning - identical to yours in fact - so that I could keep the tank as my target 100% of the time. That made things a lot simpler as I eased into the role but as you get used to the healer experience you may want to experiment with not using them. That depends on your play style of course and you're already using Holy on packs of mobs and using Asylum, so that's fantastic. \o/
Some macro problems are that they won't always execute when you press them (they can't be qued) and they can be interrupted by pretty much anything (eg; it'll only partially execute before stopping). They're a big'ol spaghetti mess.
Passive traits will automatically update your attack abilities so just place the lowest level attack on your bar and you'll automatically have the most recent version in later dungeons. Aeros, Stones, and Aero becomes Dia. That also helps with syncing down in dungeons. Stone 1 will eventually become Glare on your hot bar, but when Duty Finder pops you back into a low level dungeon you'll automatically be back to whatever version of Stone is appropriate for that level.
... and those KOs aren't really your fault, but in time you'll reflexively glance on your party list to catch things like that DPS out there vibe'n.
On a side note, some DPS players will deliberately "stand in the fire, DPS higher" when they suspect that the attack will not KO them. BLM players in particular will do this because of their long cast times. This can help the party quite a bit but it requires that they have experience with the dungeon / fight to know what they can or can't eat. Of course, they'll also need you to toss a heal at them when they do this. This isn't the case in what you're describing in your post, but if you see a DPS standing in the bad then it may just be them optimizing their damage. Knowing this can help to reduce frustration levels with some behavior that you'll inevitably see.
That's also placing a lot of trust in a Duty Finder healer but your use of Holy and Asylum may encourage them to take the risk since you're actually using your kit.
edit: The forum experienced some errors when using mobile emoticons. TIL don't use them.