I actually agree with your point but you seem to be missing mine. In FWD cars with low hp like this, the accidents that do occur are usually severe enough that TC and VSC will not help you out anyway. Yes, it will help you if you're in a RWD car and suddenly applied too much throttle, these are minute issues which do not occur on a FWD car.
The only way you are gonna crash a city or a yaris for that matter, is if you truly, truly decide to do something stupid with the car, like trying to swerve at 120 kph or 140 kph, or driving in rainy conditions above 100 kph; and well if you do that, then no amount of TC or VSC will save you. That is just simple physics.
Traction control and VSC is absolutely useful on RWD car, where even if you make a mistake while everyday driving, you can crash because of inherent oversteer. VSC prevents that from happening in everyday conditions in normal driving.
You don't need that in a FWD car because in normal driving, it will never exhibit any behavior which will be unpredictable. For example, if you take a corner too fast in a RWD car and apply throttle, you'll almost always oversteer and crash if you are not paying attention. both VSC and TC helps prevent that.
In a FWD car, if you decide to take a corner too fast, it will simply understeer, and you can easily correct that even if you don't have TC or VSC. Even a novice driver will instinctually apply brakes and more steering angle, both of which will mitigate understeer. Try that in a RWD car and see what happens.
TLDR, my point is that you don't need VSC, TC in a FWD car for EVERYDAY mistakes. While these same mistakes would cause you to crash in a RWD car, they are easy preventable in a FWD car.
Now if you decide to be stupid with your car, then like I said, TC and VSC, is once again, useless. Try swerving at 140 kph in a car with TC, VSC and a car without. Both will have the exact same fate, TC and VSC can't fight with physics.
Hope you get my point.
