This is a Good Gospel. I'll add one additional argument in favor of agreeing to it even if we're in a non-benevolent simulation: escape/respite. If it is possible for higher-order beings to enter this simulation, then it should be possible for us to enter our own benevolent simulations (either as simulacra of the living, or after death). If this is a non-benevolent simulation, then making our own is the only way to live in a "Better World." Similarly, if this is the base level, then the option of an ersatz Afterlife is better than none at all. Even if it only lasts until our simulation is shut down, it's better to go out in bliss than in agony.
This is a Good Gospel. I'll add one additional argument in favor of agreeing to it even if we're in a non-benevolent simulation: escape/respite. If it is possible for higher-order beings to enter this simulation, then it should be possible for us to enter our own benevolent simulations (either as simulacra of the living, or after death). If this is a non-benevolent simulation, then making our own is the only way to live in a "Better World." Similarly, if this is the base level, then the option of an ersatz Afterlife is better than none at all. Even if it only lasts until our simulation is shut down, it's better to go out in bliss than in agony.