That is true. They should be responsible enough to verify applications before allowing them to be available in their store.
Glad you checked. It is always advisable to do that which baffled me that with the amount the user had in his wallet, he should have bothered to check the official channels (Ledger) before doing anything.
Thank you too for sharing. It makes us aware of things and be wary with our own dealings when it comes to our crypto assets.