Handily, I uploaded a 1 minute clip from the first pull of Ala Mhigo a bit back if you want another comparison. It's an example I uploaded to demonstrate just how low you can let a tank go with little to no risk. It's worth noting that this was with an FC member though, I wouldn't be quite this harsh in a pug with a tank I don't trust
Your improved targeting speed via F1-4 is immediately noticeable. This is easily the most significant single improvement from your last video and it'll only get better as you get more used to it. Great stuff.
As for other things in order of significant to nitpicky:
Definiately consider further refinements to your hotkeys, in particular moving away from clicking any crucial twitch abilities. @9:45 is probably the most glaring example where you are getting distracted hunting around with the mouse for your Tetra click. It's both sluggish and distracting and is likely to cause significant issues for you in emergency situations or more challenging content.
I'll repeat my wincing at your excess movement and habit of dancing inefficient jigs particularly on bosses. The second boss @11:10 is the clearest and most unnecessary example of this, you're constantly repositioning yourself with little to no benefit and throwing away likely over 50% of your GCDs in the process. Whilst it's not actually going to impact anything other than your DPS on a boss like this. It still puts you behind on certain heals as you have to run in to AoE and it's another thing that is going to really hamper your throughput in raids.
Your spell selection is still quite erratic as well with a good number of unnecessary medica 1s being the standout here. It's also worth noting that you are overhealing with your Cure IIs by 30-70% with a fair degree of consistency. Whilst it's better to heal too much than too little, if you want to head on down the DPS rabbit hole, this will be the next place to look at after you've set anchor and grown some roots
Another area to look at is your overall awareness, both of your cooldown status as well as the overall situation around you. I'll openly admit that this is an area that I've struggled in and there's a few things you can do to make it easier. The biggest tip I can offer might not be so great for you with the limited HUD space you have, but it helped me no end, and that was to place a vertical 2 wide hotbar right alongside my character in the middle of the screen. It's not bound to any hotkeys and I only click a couple of non combat things on it. Rather it's primarily there to show me all my cooldown timers in one easy to glance at spot. This is hugely important in letting me instantly know if I have enough oGCDs in the bank to push DPS or if I need to play it safe and keep the tank topped. Another thing that can help with awareness is simply zooming the camera right out and looking down a little more. Giving yourself the best field of view over what's happening is paramount for Extremes and beyond.
Moving into heavy nitpick territory, keep working on your regen and dot uptime. It's worth it <3
Excuse me if it sounds harsh. Whilst you've clearly got room to improve (as does anyone frankly), your first clip was borderline train wreck status at times. You definitely look a lot more at home in this clip which is is a crucial step in the right direction. Whilst I'm chastising you for dropping the ball at 9:40, once you actually planted your feet and got your stuff together you looked a lot more convincing with the Cure IIs into dodging an AoE whilst placing Asylum immediately into more Cure IIs at 9:50 being a much better standard of play, enough so that I'll forgive you getting distracted with your Holy immediately after
Good stuff, keep it up <3