if-else logic omitted within component

components.dummy-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  isAllowedToDoX: true,
  isAllowedToDoY: false,
 	isAllowedToDoZ: true
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}

<b>Dummy Component where parts of the layout is filled from outside:</b><br>
<br>
{{#dummy-component as |dc|}}
	{{#if dc.firstSetOfButtons}}
  	{{#if isAllowedToDoX}}
    	<button>Extra Button E</button>
    {{/if}}
    
    {{#if isAllowedToDoY}}
    	<button>Extra Button F</button>
    {{/if}}
  {{/if}}
  
  {{#if dc.secondSetOfButtons}}
  	{{#if isAllowedToDoZ}}
    	<button>Extra Button G</button>
    {{/if}}
  {{/if}}
{{/dummy-component}}
<br>
<br>
<b>Dummy Component without any extra rendering:</b><br>
<br>
{{dummy-component}}

templates.components.dummy-component.hbs

I am the dummy component and below is my own first set of buttons:
<br><br>
<button>Default Button A</button>
<button>Default Button B</button>
{{yield (hash firstSetOfButtons=true)}}
<hr>
The below is the second set of buttons:
<br><br>
<button>Default Button C</button>
<button>Default Button D</button>
{{yield (hash secondSetOfButtons=true)}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}