> hiding key components of your application behind a burger menu is bad for engagement

It's still undecided and has become under further scrutinize lately if low engagement actually is a bad thing, considering everything.

Many of the biggest tech companies does nothing but optimizing for engagement, and hence we have viral outrages via social media. Addiction is also played as something that are good for companies, but we're slowly waking up to the notion that optimizing only for engagement was never a good idea for humanity at large.