Seriously aft Cof G maybe? 737 tail strike 60 knots on take off roll.
 

Seriously aft Cof G maybe?

Perhaps. However, the reported tale suggests more likely a significant stab mistrim for the CG and, perhaps, a contributory misloading of payload ? I can imagine that the events caught the crew's attention quite effectively.

I can’t say for sure but it seems highly unlikely that the elevator/stab, however configured, could produce enough aerodynamic force at 60kts to put the tail on the tarmac if the CofG was inside the envelope.

That said, if there was a strong headwind, the temperature was ISA-40 or below and the the quoted 60kts was groundspeed, then the equivalent IAS could be closer to 100kts, at which point all bets are off...

It appears to have been derived from ADS-B so, yes, it would be GS (in this instance).

"3594 kg of cargo"
What about part of that, or the whole of it, shifting during the T/O run ?

From another source...this does not match the other circumstances of rejected takeoff

During stopover, all front cargo and most front passengers were unloaded. Airplane rotated at 50kts, struck tail, crew chose to continue takeoff to avoid slamming the nosewheel to the ground. Returned only after pressurization problem, which is kinda obvious if you see the pictures.

An Ural Airlines Airbus A321-200, registration VQ-BCE performing flight U6-9785 from Ufa to Nizhnevartovsk (Russia) with 165 people on board, departed Ufa's runway 32L, the tail however contacted the runway surface. The crew continued takeoff and climbed to cruise FL350. About 40 minutes after departure, 270nm northeast of Ufa and about 60nm northeast of Ekaterinburg, the crew decided to divert to Ekaterinburg, turned the aircraft around and landed safely on Ekaterinburg's runway 26R about one hour after departure.
The airline reported the commander felt a strong impact of the tail with the runway on departure. The flight was aborted and the aircraft diverted to the nearest maintenance base.

The captain admits to feeling a strong impact of the tail with the runway on departure yet still presses on regardless climbing to FL350. Saving the company money obviously trumps flight safety