Hailstorm's only problem is that its too fragile. If it actually could LOCK a single monster without sacking using 5 charges, it'd be an excellent snapcast>single target over this. MA is also a VERY poor standard now, as you normally will see even folks in KR basing it off of how well it does in say, SWIZ hard. Single target almost NEVER shines in MA, since you will almost always have all 8 targets to hit with primarily AOE. Even Fleta round, there's enough AOE damage to annihilate over single targeting tarlach>kristell>price>fleta.
Meteor strike is still good in the fact that its long range, physical damage, and EXTREMELY high burst. Generally a safer bet to use in situations you'd find yourself risking certain death walking in there.
I don't disagree however, there needs to be a few tinkerings to fix how magic balances itself, as icebolt can be disregarded near entirely until you want the +50 int, Thunder has so few uses it hurts, and firebolt's nerf has to coincide with the fix of final hit because that's just about the only plausible reason for why they made FH stupid levels of strong.
Why did Icebolt of all things get movement speed decrease? Hail Storm would benefit more from that.
Meteor Strike has high burst, but it's still too flawed. The cooldown is still pretty damn long (even though it does EQUIVALENT damage as my Sakura Abyss) and stupid sourspots throughout its edges.
Icebolt was nice to keep a few targets at bay, but ended up being meh. Also, Thunder near useless? How?