Rlcraft is a modpack made to punish people in just about every way and make them think differently in how they do things. Before 2.9 it wouldn't have been hard to argue that we had some limitations in what we could build with and how it looked. Now we have quark mod and a few other mods that add interesting new building items for us to use.
I also know they tried once so far to disable the events and it ended up only disabling the minibosses and bosses instead of the events.
I do not know what the lycanite config looks like as most of the stuff i look at usually as an ingame viewing option for a decent amount of what it offers. If there are more attempts at this in the future, I would ask if its possible to only disable these events in main world. Despite some of the downsides to these events they are a very good source in some cases for people to gain knowledge rank exp and/or to make an attempt to tame a pet/mount they've had a hard time finding.
The events that tend to cause the most harm yearround would be cinderfall, eruption, and Hells Fury as the primary base damagers also Sharknado spawns flying sharks that can knock off signs/item frames. In december Your Head Roastin On A Cinder Fire spawns several of the mobs from cinderfall and even tho there isn't a mob list in the wiki Satan Claw may have demons as part of it. Halloween also has its own event that will have a chance to spawn demons called Happy Halloween.
If they can't be disabled for one world only but, is found that some can be disabled individually then i would suggest the ones listed be the main ones disabled as most of the mobs can be found in the nether, spawns created for them like cinders will start spawning with 7-12 active fires going, and the roas aka sharks can be found in oceans. The mobs are also programmed to despawn on there own after 5 min of the chunk being loaded in some people may perceive that they are staying longer as chunks on the outer edge of peoples visions (outer most chunks seeable) may not necessary have there timers counting down.