Password Managers: Under the Hood of Secrets Management
The threat model used for this assessment pretty much never happens in reality. If you're arbitrarily reading memory using software, then you can also install a keylogger or steal clipboard contents, which the authors themselves concede no password managers can protect against. So what's really being evaluated is how well password managers can withstand physical attacks (DMA/coldboot), which isn't a concern for 99.999% of people. Furthermore, if your attackers had physical access, they could very well install a physical keylogger to steal your passwords, bypassing your password manager's countermeasures entirely.