Ever since BT, the game has been heavily built around raids, so the hardest gear should be exclusively obtained via raiding - you have to find a team, learn lots of mechs, be able to coordinate actions, etc. to succeed - nothing in this game is more satisfying than clearing a raid boss with friends / dedicated people after hours or weeks of trying. Newest raid is by far the most challenging content, especially with the addition of EM.
Thus, no blood roses should be added anywhere else to cater to people who either have no time to raid (sorry if you work and cannot play - just whale out or don't play MMOs) or who are just outright bad/antisocial people who cannot stay in a raid for obvious reasons. Farming blood roses, the mat for absolute end-game weapon, in Moon Refuge by trashing mobs would precisely be a reason why the game would suck even more contrary to your belief. The game is already boring enough and with being able to farm all top gear without doing the raid would disperse the community even more. If you want to smash trash mobs 24/7 farm for top-end gear go play BDO. I don't need another BDO here. Also, not being able to buy/upgrade raid gear without doing raids IS NOT EVEN IN TOP 5 of the reasons we don't have a "stable" player base - poor game optimization, moonstones behind 6v6, nerf of all profitable content, unnecessary hasty addition of absurdly expensive gear that takes many months to upgrade, and trove that gives cash users too much advantage, too gear-gated content like ET would be ALL far more important.
I will repeat again - if you don't want to / cannot join an ET raid, don't expect to the gear by other much easier means because it's both disrespectful to those who have spent weeks progressing through the raid (it took my raid more than 2 months to clear ET), and it would also lower already scarce social activity from the game as well as lower skill cap needed to progress down to the Marian Trench.
No offense but you really look like a typical raid buyer, many of them being simply bad or lazy players from my based on my 9+ year experience of raiding, who just paid with gold the ET stuff from a selling raid and want to reroll ss and upgrade TB stages by just simple modding mobs outside Jadestone Village, dodging all the hard work :) You really gotta reroll to BDO and split you time between afk fishing, trashing hordes of packs of dummy mobs, and playing the market. That's exactly what you are looking for apparently. If you don't wanna work hard for the gear - stay on GC tier and you will still be able to do all in-game content with no issues. Everyone here seems to disagree with you, and it's for a reason.