Meta uses some variations on Hybrid Logical Clocks, which are very similar to TrueTime, so yes this does apply. Besides performance they very much want to avoid

Meta uses some variations on Hybrid Logical Clocks, which are very similar to TrueTime, so yes this does apply. Besides performance they very much want to avoid consistency issues that could result in a security breach, eg, if I block Alan and then post "Alan is a dookie head" you don't want some node seeing the second event first. Well really the bigger concern is someone spots this as a potential vulnerability point and scripts something.