The problem there is if you give too much reward for the solo path....you ruin the chances for league play for the ITrials. I know many who did not do ITrials because of the time invested and the more complicated mechanics of the missions. But if you can get the same rewards for solo content as for team play it is just going to make it harder to form teams. I think solo play is fine for adding additional rewards above and beyond team play but should not replace team play. I had no issues with solo rewards as it was.
Problem there is that if you FORCE people who want to advance to only be able to advance via large-scale-team-raids, you limit freedoms.
The solo path for incarnates was so slow and crippled that it may as well have not been there.
I have no problem at all with a solo path being quite a bit slower than team play -- (by it's very nature,
team play is going to give faster, bigger, rewards. You're mowing down mobs faster and in much larger
quantities) -- but deliberately crippling the solo path rewards on top of the natural lesser rewards for
solo vs team play was a mistake (imo).
Me, I hated the large scale raiding -- I deliberately avoided Hami Raids, Mothership Raids, and the iTrials because of that.
Of course, on top of that, the only place the Incarnate abilities were usable was while in Incarnate raids, so
(after grinding out an Alpha slot) there wasn't really a need to get all Incarnated up if you didn't want to do the raids...
Still, I would have liked to explore the Incarnate paths, but it was basically pointless for me to try. And the further up the Incarnate tree you went (for the later iTrials) the even less likely I was to participate as 1) I didn't have enough lower level incarnate power to keep up, and 2) I got more and more left behind on tactics.
Plus I started missing out on Game Lore, which probably bugged me more than anything else about the raids.
I never had a problem with the Incarnate Trials; let those who enjoy them, play them. It just would of been nice if there had been a slower (but not stupidly, cripplingly, slower) solo path to follow.