But Ricardo Vaz Te's dramatic late strike secured victory for the east Londoners and condemned the Seasiders to another season in the second tier.
Holloway said: "The players certainly did me proud. Some things in life are harsh and it certainly feels that way at the moment.
"They scored with their first chance and we had a couple better than that.
"It was on a knife edge, it's the spin of a coin and it's dropped their way so well done, good luck to them, we'll dust ourselves down and start again."