Donegal manager, Shaun Paul Barrett, was visibly disappointed as he spoke to the press under the Cusack Stand after the game.
“We're very disappointed,” he said.
“There's a group of 33 young men in there and they're absolutely heartbroken.
“They put in a huge amount of effort this year and they have been on a great journey, and they have a great bond between them, and just today wasn't our day," said Barrett.
Asked about the journey and if Donegal hoped to go as far as they did at the start of the year, Barrett said: “We always believe in the players in Donegal. It's a massive county and there's always great quality in it, and we always have belief in them."
The Donegal minor boss agreed that his defence were under pressure but it was not something that was unexpected.
“You're in the All-Ireland semi-final – every facet of your game is going to be tested. Yeah the defence was up against it, but so was our forward line and our midfield.
“We're playing against the best teams in the country and that's the way it's going to be.”
Barrett felt that the concession of the goals was a big factor in his side not reaching the All-Ireland final.
“We conceded a couple of goals there, and we're very disappointed in that and we didn't create enough chances going forward and we weren't driving through enough.
“Galway were getting back in numbers but we weren't penetrating them enough.
“I think we underperformed today and we're disappointed in that," said Barrett.
“We started well and we had a chance at the start of the game but we didn't take it.
“Galway are a good side and they like to put the direct ball in and we were aware of that, particularly from Evan Murphy.
“I thought Aaron Deeney was superb on him today and completely nullified him.
“But they obviously have other quality players and they are well able to kick it in and they had two very good men inside," he said.
The Donegal boss was happy that his side did not cave in and kept going to the end.
“That's what we expected of them, and as I said, all year they have worked tremendously hard.
“We were prepared to work right to the final whistle. They have the work done and they have the training done, and the least we expect is for them to keep going right to the end."
Asked about next year and the fact that four of the side that finished the game are U-17, Shaun Paul was not interested in looking forward.
“Today we're not looking at next year. Today was about today.
“There's always under 17s in the Donegal minor panel and I'm sure Galway had a number of players in there as well.
“Today we're hugely disappointed and we will have to regroup and look at it, and as I said, there are 33 young men in there and they're heartbroken," he said.