Why does useFieldArray use dot notation instead of brackets?

[kevinmitch14]

I saw that previously, RHF allowed for both methods of usage. However, as of now, only dot notation is allowed.
ie:

name={`people.${index}.name`}
// instead of 
name={`people[{index}].name`}

The main issue I am having with this is sending structured data to my backend in FormData.

// people
[
  { name: "Jim", avatar: File },
  { name: "Mary", avatar: File },
];

This is sent to the backend as people.0.name, people.0.avatar and so on. Does it not make sense to have people[0].name being sent?

Accessing something in an array like people.0.name does not work, while people[0].name does work. Does it not make sense that, if we are working with an array of fields, the name of the inputs correspond to a value in the array?

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Having a look at previous issues + discussions, the reasoning is for Typescript?
It seems that Formik, Tanstack Form and Conform promote the use of people[0] instead of people.0