No. Let Coils just be what its always has been: Challenging raidcontent for level 50. If you want to "ruin" your experience and ripping yourself of a challenge, thats now your right to do so. Please, go ahead.
FYI: I do play this game - and you know what? I even do Coil still! And you want to even know more? Some friends and I would like to go in syched again soon - just to see if we can still beat it.
...if you want to bring other threads into this btw - you're the guy who "doesnt get the whole gay thing", right? Apparently you also dont get the whole "wanting a challenge" thing...
If you want to talk about experience with the game... well... as far as I can tell you've never touched any difficult content at all. No Savage gear, no EX-primal mounts... its no surprise that you confuse the 24 man raids (who were always supposed to be faceroll easy), Alexander NM (who was supposed to be an easier version, so people could just see the story - thats the compromisse they've made after people complained about it in Coil) with an actual, challenging raidcontent and that you're dissapointed when it turns out to be something else from what you've expected. That its content, that, god forbid!, requires you to pay attention!
Updating them to current levels is a waste of ressource - also, what makes you believe that you could clear them then? You failed T11 because of a mechanic, that would still be in place in the level 60 version.
Nerfing them is taking away a challenge for those who want one - and again: there is enough casual content in this game, if you'd rather not challenge yourself.
Coil is Alexander Savage - not Alexander NM.
Honestly: Since OP keeps bringing up Alexander (and he HAS to mean Alexander NM), I'm not sure if hes aware that there is a more difficult version and that Coil compares more to that - and not to the "casual" raids he likes to bring up (alex nm, crystal tower, mhach-series)