Craftsman owes me a torque wrench; they promised a lifetime warranty.
Except Craftsman is now dead. The lifetime of the company has expired.
Expecting otherwise is delusional. Who can I sue for breach of contract? Their ghost?
While it would be nice for companies to honor such promises through mergers, it would make many toxic when the obligations of their generosity is what led to their insolvency.
It's the stuff of horror stories when your ex takes "but you said you'd never leave me and you'd always love me forever" to its most literal extreme. The expectation is irrational and unreasonable.