Once a musician played in the presence of the king who had promised him a thousand coins. Later, he asked the king for the money. The king refused to give it to him and said, "The music you played doesn't make me merry for a long time. Therefore, the money that I intent to give you is also to please you just for a while."
So is the wordy retribution.
While there is little pleasure in human lives and in Heaven, there is also little substance in them. Owing to impermanence and destruction, the pleasure does not last for long just like the music giving only a transient rejoicing.