Taking quantum mechanics seriously

A new physics paper starts:

Many advocates of the Everettian interpretation consider that their approach is the only one taking quantum mechanics really seriously, and that by doing so a fantastic scenario for our reality can be deduced, made of infinitely many and continuously branching parallel worlds.

I guess its true that those advocates claim that they are the ones taking quantum mechanics seriously, but the truth is more nearly the opposite. he many-worlds interpretation has no scientific merit, and is just a way of mocking quantum mechanics.

Taking quantum mechanics seriously means only believing in observables, and not in imaginary worlds that can never be observed.