Aren't there skillchips for martial arts and the like, as shown off by that asshole corpo kid in Edgerunners? Those are really just Doll chips with a different name and no exterior connection (and maybe with less resolution where facial expressions are concerned), if you think about it.
Skill chips are
not doll chips. There's a qualitative difference in mechanism.
Doll chips are used to
control the brain and body. They don't improve skils available to the recipient, they just decide such-and-such should be felt or done and then directly manipulate the brain to express that emotion or make a movement.
This
can be used to hamfistedly automate combat, as we see in 2077, but note:
Judy: Done saying hello to each other? Revolution won't plan itself... I modified the behavioral chip. It can equip any doll with a motor reflex system. In other words, make the doll move and fight like a preem-tier solo.
[...]
Judy: The body'll react as if executing a well-trained series of movements. Already tested it out on Tom. Chip's impulses supplant any natural reflexes, so it'll make users feel like they're experiencing cyberpsychosis.
It's a hot mess if you do. Feels like
cyberpsychosis, she says. It should go without saying that skill chips don't feel like that.
Conversely, a skill chip is just data. It's integrated into the brain such that you naturally use it when invoking the skill. Skill chips work for
any skill, including subjects that would be nonsensical via puppetteering, such as netrunning. The user just knows what they need to know and accesses it just like naturally-trained knowledge or ability. The downside is that skill chip technology can't (usually) exceed 3 on a scale of 10 in the TTRPG; and that's to set the skill to, not boost. Meaning if you're at or better than 3, the chip is literally useless-- and it won't let you improve while it's chipped.
More relevantly to the original topic, it's likely that the way skill chips are implemented is fundamentally not able to command you to do anything, meaning any techie can reliably say "this chip can't make you kill your family one night," even if the chip is hacked. Conversely, a doll chip could absolutely do that, making it a security risk that a skill chip could never be.
(Some people believe Evelyn was hacked by the VDB into killing herself at the end, in fact.)
If TT is so aggressive in every instance, I can see situations where they make enemies. The tech and crafting abilities would make building a manpad feasible or even just a fast drone loaded out to take out a TT aircraft unless there are serious reasons not too. Maybe TT has a policy to scorched earth people who do such things? It has to be really serious or they will experience reprisals.
TBF, TT is the enemy by default of anyone who attacks their clients. At that point being less aggressive isn't going to really change anything, IMO. Like, Trauma Team doesn't shoot people who aren't in some way a threat or obstacle, usually in a dangerous situation. Everyone knows what's going on when TT shows up, or they should.