Dean Wilkinson wrote:

The controller in this case clearly screwed up since he instructed the
Russian jet to descend when the Russian crew told him they had an RA
instructing them to climb.

You might like to wait for the accident report, since that isn't what
the initial review of the CVR and FDR indicated.

The TCAS system had warned the Russian crew to climb, but just as they
started to comply, the controller instructed the aircraft to descend.
The Russian crew did not first tell the controller that they had an RA
instructing them to climb, so the controller did not override that
alert.

The DHL crew got an instruction to descend from their TCAS, and
announced that they were doing so.

The Russians don't appear to have given proper training to their
crews regarding the TCAS system because the crew didn't ignore the
controller like they should have and followed the RA.

Again, you don't know what their training is. The pilot didn't follow
the instructions, but he might have done that on his own, contrary to
his training. There has also been some argument that the controller's
instructions should have priority over those of the on-board system.

Why not wait for the accident report instead of making rash, misinformed
accusations?