I hear you on the importance of the difficulty adjustment. Nothing in btc works without it.
I think the reason it doesn’t warrant much attention here is there are no guarantees.
A company could hit a bad streak and not get a block for a long while, and the demand for the space on any particular block could be higher or lower. There is no fundamental principle within mining to leverage other than decentralization.
Asics get old, cheaper stranded energy gets pushed out. Mining might be the most competitive industry ever. it’s blood sport, and there will be casualties who can’t make bottom line