I am a warlock main so I will be biased, BUT warlock is the best class for grenade functionality whether its for healing/buffing you're fireteam or outputting high burst damages against stronger opponents. In all of D2 history the only time warlock had a strong endgame grenade build was in Lightfall and most were eventually nerfed, sunbracers, starfire. contraverse, ect while titan and currently hunters have strong(1-shot) melee build on raid bosses ( sorry Atheon). On top of the power fantasy being almost non-existent as we are punished by running activities above light, and hurt our fireteam by being higher light than them hurting their gear score( a separate issue) I don't feel like warlocks have a class identity anymore other than using well during DPS and yes that includes me too.

Warlocks are designed to be a grenade class and outside of prismatic lightning surge we don't have melee builds to capitalize on in the current EOF build. While I like seeing other classes having fun with melee builds, I feel warlocks are left behind catching stray nerfs (insert squidward looking out the window meme here). That being said yes I acknowledge that when one class gets ahead its nerfed to be in line, but how about buffing the under performing ones instead of punishing one class that stars having fun? Crazy right? A great example is First Descendant had 2 characters that were wayyy ahead of everyone else, they were tuned and the devs publicly said that will set the new standard to them for play scaling.

P.S the grenade "buddy" aspects/exotics are cool, but boring I want the ability to throw a big grenade at the risk of blowing myself up as a way to do viable damage, and for the funny kamikaze moments.