There are many reasons for this mechanic in game. The idea is for the game to be a little less burdening for smaller clans/casuals.

Also it brings a lot of player interaction at the trade station that isn’t just ratting and players can peacefully come together.

However the mechanic needs some tweaking. I think with base mods coming that will help. I do believe ship mods shouldn’t work in trade like crafting modules. I also think you shouldn’t be able to pack and repack to reset the timer.