This is just false.
In 2018/19 the Jets started the season a bit slow but by late December in the 2018/19 season the Jets were 4th in the NHL in points % and they were positive in shot metrics and improving in shot metrics.
By early January they lost Buff (for the rest of the season) and Ehlers (for over 20 games), and then they lost Morrissey for the last 20 games. So they played the last quarter of the season without Buff and Morrissey.
Here is where the Jets stood on December 31 2018, just before the long-term injuries to Buff and Ehlers.
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