You both are correct. If you follow the article referenced in this post by @JJT FastCompany Article (The Messy Business of Reinventing Happiness) you will find a cavalcade of contractors AND a series of project management gaffs on Disney’s part.
The debate of IOS vs Android is moot, as the real issues are more likely to reside in the back-end. How else can you explain it taking 5 hours to get your magic band to open a hotel room that you have spent hundreds of dollars a night on. By all accounts that I have read, the back-end looks like a patchwork quilt.
This ! If you going to rely on a sub component then as the developer you are responsible for its behavior.
For another take on this, look here: MyMagic Minus: The Post-Pandemic Fall of Disney’s Billion Dollar Pre-Planning Empire
Edit: add link to JJT post