Yup :) Though there have been some cases where a very short delay (before respawn) was desired, for scoreboard objective purposes, this plugin provides such a delay. But for the most part, I totally agree: simply enabling that gamerule is definitely the easier way, if the MC version provides that. I wouldn't say 99% though, as there are several servers still using rather old versions, thus they need a different solution to provide instant respawn.
Version: 0.6
It worked as I expected it to work. Haven't ran into any issues, I'm loving it! ⭐