Uh, aren't classes that make attack rolls (or trick attacks) just "spamming their feature over and over?"
I mean, yeah, there's some repetition in gameplay. That's the nature of the game (unless you are a D&D/Pathfinder Wizard who just gets to do whatever they want until they can browbeat their party into resting for the night).
As an Envoy, I flank, I Coordinate Shots, I assist rolls all over the place, I take scenario-relevant social or technical actions so my beatstick friends don't screw up their action economy, I debuff and buff, I occasionally kill-steal from the Solarian when enemies have 1 hit point left, just to be a jerk, I heal both stamina (with Improvs) and hit points (with Medicine).
I am hardly bored, even though most rounds consist of Get 'Em!/Clever Feint. I make my friends happy, because I turn their disappointing misses into victorious hits, sometimes very unexpectedly (like when that natural 6 turns into a hit against the boss because of my +5).
And that has value, I think.