BDO has zero meaningful end game PvE. No raids, dungeons, or any kind of challenging group content. Just mindless one or two shotting packs of mobs for eternity.
It's not saying much but I think Bless (and just about every other MMO) beats BDO in this aspect.
This isn't true, but it might just come down to what you expect "meaningful content" to be. The game has 2 enclosed public dungeons (Aakman / Hystria), which can be solo'd if you're top tier geared, but are clearly meant to be for groups. These two areas can drop the BiS earring, and pieces for a very rare item that allows teleports. It has Gyfin Temple and Mirumok Ruins, can be solo'd if you're even more top tiered geared, but again, clearly meant for groups (drops BiS belts). It has a weekly event encounter which you can only do in a group (Valtarra).
As for raids? lol. You have Mutant Ogre, Troll King, Offin Tet (NA doesn't have that yet), and maybe some day a non-buggy Vell. Of course you can just call those bigger zerg fests, but BDO has never been a game with gimmick based encounters that most people consider to be raids (ala WoW). If you're in a guild, you can also do pretty strong versions of various field bosses. Plus, I highly doubt BDO would work with what people typically consider dungeon / raid content... as those have all been developed with the Holy Trinity in mind, or in the case of a game like Blade & Soul, group dynamics which can limit / stop bosses from doing dmg.
People will play Bless because it is something new, it has familiar Holy Trinity systems and is tab target combat. People will stop playing Bless when they see it has nothing to offer that isn't already done better by other games. Not hating on it, and I'll probably play it for a week or to get a character to max lvl, but little longer.