I don't know about you, but I would consider leasing a ground lease if I owned some vacant urban parcel and a big shot developer came along with deep pockets. I would hire a decent real estate attorney to write covenants into the lease that assign all liabilities to the tenant so I don't get sued or assessed fines. I would ensure that I am able to raise the lease amount annually if local authorities reassess the property's value after improvements and increase my property taxes. If the lessee doesn't want to business on my terms, that's too freaking bad. They can buzz off. I make the rules once I own some property free and clear.
There must be a bunch of other things involved with ground leases that I can't address from ignorance. These things are useful in developing property that would otherwise have limited economic use.