Blocks folder are not included in vanilla add-ons

Why has this not been addressed? Why do we not have a blocks folder?

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Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.

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Behavior pack has no blocks folder. 

furthermore the vanilla blocks do not seem able to edit?

{
"format_version": "1.16.0",
"minecraft:block": {
"description": {
"identifier": "minecraft:stone"
},
"components": {

"minecraft:destroy_time": 150.0,

},

}
}
}