Are the devs afraid or don't know how to do it right?

Fuse isn't an A or S tier legend. And what actually stops him from being better is the ultimate. If you hear the explosion above you, you immediately start running in any direction and you escape. The flames are also too short and there aren't a hard obstacle to go over. Even if the fire hits an enemy when it lands, it will do 5 damage and won't apply the burning effect.

The ultimate is what needs buffs, not the tactical.

Is great you made Rampart better in quick and close combats with the amped cover buff. But her pick rate isn't going to go up unless you make more changes, like reworking her passive because is luck dependant, nerf her camping playstyle and making so enemies can't use the amped covers agaisnt you.

You should really look at your "balancing" thinking, you are very slow giving us "good" changes and most of the time are not enough. That's the reason why Crypto, New castle, Gibraltar, Rampart and Wattson are played almost nothing.

With Seer you did the opposite, nerfing him until he is not appealing to play anymore.