Its not the first time...
Back in the day, a colleague at QF got a lesson in all weather operations by sliding a 737 into the grass taxiing to the runway at CHC. Black ice was the culprit, and the embarrassed crew were unsuspecting enough to have just a couple of knots more mojo than prudent for the friction levels that they eventually discovered lacking.
In their case a lovely set of furrows ploughed into the soft dirt for all to see, a cup of cold tea, finis. Now of course we have social media and the many internet sites for casting aspersions from a distance.
The only time I got a 737 going sideways (zero friction, crosswind) it took a skilled proctologist to retrieve the seat cushion. Its not a whole lot of fun, and I sympathise with this crew.