Custom login step doesn't work when provided as blueprint-url query of playground.wordpress.net

[juanmaguitar]

The login step of the following blueprint doesn't work when provided as blueprint-url query of playground.wordpress.net (try link) but it works when copied and pasted on Playground builder

{
	"$schema": "https://playground.wordpress.net/blueprint-schema.json",
	"landingPage": "/wp-admin/post.php?post=1&action=edit",
	"preferredVersions": {
		"php": "8.0",
		"wp": "latest"
	},
	"login": {
		"username": "myauthoruser",
		"password": "mypass"
	},
	"steps": [
		{
			"step": "installPlugin",
			"options": {
				"activate": true,
				"targetFolderName": "vip-governance"
			},
			"pluginData": {
				"resource": "git:directory",
				"url": "https://github.com/Automattic/vip-governance-plugin.git",
				"ref": "HEAD",
				"path": ""
			}
		},
		{
			"step": "writeFile",
			"path": "/wordpress/wp-content/plugins/vip-governance/governance-rules.json",
			"data": {
				"resource": "url",
				"url": "https://raw.githubusercontent.com/Automattic/wpvip-learn-enterprise-block-editor/refs/heads/trunk/examples/vip-governance-plugin-demo/advanced/governance-rules.json"
			}
		},
		{
			"step": "runPHP",
			"code": "<?php require '/wordpress/wp-load.php'; $user_id = wp_create_user('myauthoruser', 'mypass', 'myuser@localhost'); (new WP_User($user_id))->set_role('author');"
		},
		{
			"step": "runPHP",
			"code": "<?php require '/wordpress/wp-load.php'; wp_update_post(['ID' => 1, 'post_author' => get_user_by('login', 'myauthoruser')->ID]);"
		}
	]
}

The same happens with this other playground (check link)