> A long term lease is beneficial for the renter in many circumstances.

That really depends…

Take a well know British retailer (was either Debenhams or House of Fraser can't quite remember)

Until the 80/90s it owned most of it's stores but a PE company bought the retailer and split the property into a separate company which them leased the stores to the retailer on an ever increasing rent

The property company was then sold off for a good price as it had assets and a 'good' income stream

The retailer now unable to cope with the rent levels become unprofitable and eventually went bust