sweets not sweet

This is one of our local specialty sweets. skewered dumplings.
in japan, people speak highly of sweets, saying ‘it is good being not too sweet’.
is there somewhere else where the same thing goes? what sense does it make if sweets are not sweet enough?
it has been like this since around ‘80’s.
Some foreigners say ‘yokan’(a bar of azuki bean paste) is too sweet, and that is another story.