Timbo commented in a recap thread about Competitive GIM where their design philosophy seemed to be if you can't do it within your CGIM group you're effectively locked out.

I actually don't mind this in some cases like AoD and I would actually prevent you from doing something like Buying XLogs at Vorago. Or boosting certain minigames for rewards.

However something like Yaka is a bit of a special case because to even be able to start the fight you need to complete the Jellyfish "puzzle" which requires a minimum of 4 people.

Not a huge deal as the amount of people who could actually duo/trio Yaka playing gim will obviously be a minority but it effectively means 2/3 man gims can't get reaper crew, Daredevil, ifb, or greaper

To be clear since people can't/don't want to read

I AM NOT ASKING FOR JAGEX TO NERF MECHANICS OR SCALE HP VALUES

I am specifically referring to the Puzzle before yaka that requires a minimum 4 people to stand on a tile for a few seconds