Yes, unfortunately did not leave enough leeway in jumping. And the impossible sections do not look impossible enough. The "out of control" element is a tilt, or misdirection, or the movement, which moves the character by itself (separate to the input) so sometimes it will jump further or less far. This component is shown by the screen tilt and the "joystick" display at the top-right (the red dot in relation to the black dot shows the direction too).