As it was, Charlie Austin's stunning strike was enough for the Clarets to snatch a 1-0 victory at The Valley.
"We should have got something from the game," said Powell.
"We asked questions of them but they answered them. Our supporters have been terrific and in some ways we don't deserve it because of how bad we have been.
"This is a crucial week coming up for us with trips to Peterborough and Huddersfield and we need to pick up something from those games.
"You have to remain positive and look upwards but I always knew this year would be tough for us getting used to the step up in quality.
"We need to make sure we are a Championship side next season."
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- Charlie Austin