I agree that the disabled (and this type of “learning disability” encompasses aphasia and other problems and is genuinely disabling) should not be competing with the non-disabled, and that it would have been better not to have had this game in the first place.
But at the same time, it was unsporting of the team to keep on pounding people they knew had no chance of coming back at them. I think good behavior towards your opponent is just elementary sportsmanship.
I think I would be more humiliated if I knew the other let up on me. I’d rather lose 100-0 than know a team felt sorry for me.