He seems like a (significantly) worse version of Keel.
From what I can tell, his bronze charges just about as fast as her bronze. Both heals are worth roughly the same amount per second, but Keel’s lasts longer (6 seconds vs 4), and restores cover. Advantage Keel.
Their silver skills can’t really be compared since they do different things. Neither one is a game changer, but both are useful. I’m calling this one a draw.
Operator’s gold skill is nice, but it pales in comparison to Keel’s. Scavenge will go off pretty consistently throughout the game, and it will target whoever needs the healing, not just Operator. It’s probably one of the better passive healing skills in the game, and when you pair Keel with Baron (which is a really great pairing IMO), the amount of healing that she can unleash becomes just silly. Operator’s gold has no such synergy. Advantage Keel.
Their platinum skills are pretty similar. Keel’s added armor is probably more impactful at the beginning of the game than the relatively minor health boost that Operator provides, but it abandons players that are halfway through being gunned down by a DPS (ie when they need it most). I’m going to call this a draw.
Operator also has more or less the same amount of health that Keel does. So you can’t argue that he’s a worse healer who makes up for it by being less squishy.
So, from what I can tell, Operator fills the same role in a team that Keel does (backline mech healer that possesses some ability to heal himself, a powerful single-target heal, some minor team boost through the plat, and some minor disabling skill through the silver), but he’s just a worse version of her. I can’t tell what his role is, unless I happen to want 2 backline mech healers and need to dip really far into the player pool. Do you agree? Do you think Operator should be buffed? Let me know!