Support is t about what perks they have, it's about what role they play. They are a team support, just like Nightstalker and Defender.

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You are the exception. The problems with HoS at the time were widely noted, and Bungie had to fix them. In my own play, I went from only having to throw a hammer in the general direction of another player to get the kill ( some people wouldn't even do that. They'd just run into a room, spin in a circle, and spam hammer at each of the four walls) to basically having to bullseye a target to have any chance of killing it. Even that was no guarentee because the prox. det . was bugged so hammers would sometimes go off short of the target.

I've never seen the burn duration persist after the grenade did its last tick if they got hit previously. So no the burn damage doesn't refresh and stack. Unless they made some change I didn't see. Like they always did

1. Flame shield got nerfed so SS are a lot less "tanky" than they used to be. 2. The duration of Radiance when used with Fireborn to self-rez got nerfed. 3. Yes...that's what the SS SUPER DOES. It reduces the cooldowns on the Warlocks abilities...plus you can either buff the abilities of allies, become damage resistant (Radiant Skin) or self-res (Fireborn). 4. Solar nades are unreliable. They are a zone-control/area denial weapon. Unless you use chokepoints or paint an enemy in them, they are useless in PVE...and only really useful to force opponents to move in particular directions in PvP. 5. Firebolt grenades were nerfed into the ground. They detonate so slowly right now, that you'd have to be BLIND not to be able to get out of the way...and they do almost no damage (in PVP) unless you basically hit your target in the chest with it. When the weapon is SUPPOSED to be an AoE weapon. 6. Viking Funeral got nerfed. Turned into a debuff, instead of DoT attack. 7. Gift of the Sun, yes. But Hunters and Titans have exotics that allow them to carry two grenades if they wish. Bottomline: Every aspect of the Sunsinger has been nerfed...and nefed BADLY. Now they are no more tanky than a Voidwalker wearing The Ram. Voidwalkers now have the best grenades....and Stormcallers are better point-defense and crowd-controllers than Sunsingers. If it weren't for fusion grenadeds in PVP, you'd could remove SSs from the game and no one would notice right now.

The grenades aren't giving that support role, the first grenade you get does but the others, not so much. The fusion grenade just makes you throw one, and be done with it. Bolt grenade is similar, but doesn't do high enough damage.

Where's this fabled "support role" this Subclass is supposed to have? Other than Song of Flame, I see no team oriented abilities. No useful enemy debuff abilities. Where is it? Where's the support utility?

It's support options are very very limited. I mean there is not a lot you can do with support options. On a side note, unless you are playing with clan mates or dropping a lot of orbs of light, what incentive do players have to use perks like song of flame for support? How do I know if they can see a decrease in cooldowns and how many players have the patience to stand by a highly nitric able flaming sunsinger and be willing to risk getting supered in the process. I know if I saw people huddled around a flaming sunsinger I'd super all of them. Sunsingers don't offer support that impacts gameplay enough to make them a legitimate support class. Neither do defender Titans. They offer more of a threat to being supered then they do support.

Support in pvp how? The radius for Song of lame is small and people never realize you are using it.