The real issue here isn't the difficulty of content but rather the difficulty in finding a group of players to progress with. It seems, in my experience on my server, that most FC's don't run a lot of content together anymore. Finding a static that works with your schedule can also be very difficult. But instead of focusing on joining every T5 party you see, this should be your focus. Once you find a steady group, you will clear content. It may take some time for some members to learn the content as well as you already know it, but it's much better than being consistently frustrated by random people.

T5 with echo and i90++ gear is already "easy mode." The increase in difficulty from T5-T6 is already significant and if T5 were made any easier people who cleared it after another nerf would likely feel like T6 were insurmountable in comparison.