Yep, it's the intention, not the outcome that is important. The imperfections just make it all the more authentic.
I taught for 24 years (K&1st Grade). We made quilts all the time. Perfection had to go out the window. If you altered a child's block, or a participating adult's work, you are telling them it wasn't good enough. That is not incentive to keep on trying.
What you are doing is validating all the creative spirit of those who participated - an honorable, if exhausting, labor of love. It's good to know that what you send out into the world comes back to you threefold! Don't stress. Breathe. Enjoy!