I for one am glad that these have been added, I wouldn't touch them otherwise and definitely wouldn't have done the new slayer challenge. Took me a while for my first spider kill, but being clueless with combat, using only offensive abilities and tier 80 gear it was a lot easier than I thought and despite the deaths, I actually enjoyed the challenge (didn't help that I did some boss slayer and earnt crystals before hand by accident). I messed up a lot, I'm terrible at combat, I don't know properly how to use any defensive abilities, I don't know how to heal my yak so he always died on me on the third stage leaving me with less food, I'd never even used momentum before this. I can see the frustration and the pressure of the first kill, but with high level healing, keeping your yak alive and persevering it'll come. As for the group bosses, I've never been, probably struggle getting a team without paying, but there's always clan events and such to at least try for free. But ever since being a kid and playing ff games and such, killing all bosses has always felt like a major part of completing the game, far more than side quests and such but i guess that's just me. Obviously people will have different issues, lag has killed me hundreds of times in my rs existence, me being a noob has caused at least tens of deaths minimum. But there is no time limit on killing these guys, there's no limit of the money you can earn to improve your gear, you can make millions a day without even logging into the actual game nowadays.