I can see why people would want to change the timers when a single group is controlling all the content. But that single group wasn't always controlling it, there was at one point 3hour+ long fights for content like Kraken and Red Dragon. The cause of the single group controlling it is due to the other group that was contesting giving up on coming out to contest. That same group is currently inactive in game aside from trade chat/taxes but are here on forums actively trying to influence a game they're not even a part of. No other endgame content hungry guilds have stepped up to come fight since then, aside from some attempts from both East and West.
If they were a part of the game and actively playing they would realize that the bosses HAVE and ARE being contested on a weekly basis by both West and East guilds. They have even managed to take some content because they've shown up in an organized fashion and contested us. They consistently outnumber us,as Threeve has mentioned on his post 26 West vs 14 PN2 so it's not like we have this disgustingly huge advantage over them. If you want to complain that our gear is "better" and that's why we win, I can point out the GS gap that used to be a thing has been closed a lot by Hiram being available to players and will likely get even closer once t3 Hiram does come out along with the usual 10 + player advantage that other guilds have.
The "monopoly" and "free farm" is caused due to no-one coming out to contest/fight us on the boss much like PN1 did when PN2 wasn't around. If you want to get the bosses that we have on "lock down" I'm not going to tell you to "get better" but rather I encourage you to get more organized in order to contest. It's not free, there are no handouts, earn your W. If you want it so badly that you cry in forums about timers being a reason that a group is singularly dominating the content then get a group together that feels the same way you do and have someone lead them to come take the content away from the "20" players that you can't seem to beat.
Changing the timers on the bosses won't help with anything considering what has recently happened (literally last week) where West came out to contest Kraken which bled into RD spawning and we had to go back and forth fighting them at two different locations ultimately denying either group from both bosses. The timers do not need to be changed in order to stop the "monopoly of content", all you have to do is show up and contest it to achieve this.
Will you get the boss every time? No, but you would start to deny/hurt the "freefarm" that you so badly want to do. Much like when PN1 was free farming for, PN2 showed up and they suddenly they were no longer getting the boss as easily/regularly. Were the timers changed in order for this to happen? No, they were not, players stepped up and organized themselves to SHOW UP and contest the dominating opposing force.
We once asked for the timer of TWT to be changed from 2-4am that it was spawning at to reset to a reasonable NA time zone which PN1 fought against saying that it's fine the way it is and we were given a firm "No." by administration so I don't see why changing the boss timers catering to them for any other bosses would be any different than us asking for a change to TWT.
THE SOLUTION
"Like I said earlier, under this system, one group of 20 people can attend every event for the entire duration and make sure either they kill the boss, or at the very least, nobody else does."
This is currently happening under the system we are in right now if players show up to contest much like West did this past weekend with Kraken that bled into RD which ended up neither side getting it. Nothing to do with timers, just people showing up.
The only thing that will stop the "monopolization/freefarm" is if players come out and contest, keep the current timers, quit crying in forums play the game and show up.