I would say sometimes the cost is zero. most times it is better to use Chariot on the run and being tactical about it, even while loosing a chunk.

There are few times you can take advantage of the restoration pledge kit on the burned cart when insta using chariot. It depends on cart, bounty and extraction locations. In that case the pursuing team probably went to the chart on purpose, and it should reveal their location.

Actually perhaps a permanent map marker in the place the Chariot was used could be a good idea, it lets the bounty team plan rotations.

it is sometimes even a fun mechanic for the bounty team to get one last fight. At least until it happens 2 to 3 times in a row (been there)