The Chinese chose the T72 because there was no choice, not because the T72 was good.The Leopard 2 is still a 1970s era tank. It gets blown up by mines and artillery just as easily as any other. In fact, because it is so huge, it is much easier to hit than a T-72 derived tank. The M1 isn't any better, and has gotten regularly destroyed in Iraq, by insurgents using Soviet era ATGMs.
A lot of it is propaganda. These Western tanks might have had better sights and communications at one point but that ceased to be the case a long time ago.
I think it is quite telling that China copied the T-72 series and used it as a base for the Type 99 family. They could have designed any tank they wanted.
The Chinese needed a new gun for their next generation of main battle tanks in the first place, but the options were limited: either import the 120mm main gun from Rheinmetall, use their own developed 120mm gun, or use the 125mm Soviet-made gun from the T72;
Of course the outcome was clear, Rheinmetall was unwilling to transfer the technology and the 120mm gun system and auto-loader developed by China itself was too large (The same as Type 89), then only the remain option is imitation of the Soviet artillery.
At the same time, the Chinese manufacturing technology level was very low, and when the world powers were producing their third generation MBT, the Chinese could only make the second generation MBT. In fact, the ideal tank of the Type99 design chief (i.e. 99A) did not solve the mass production problem until 2010.
Secondly, there is no way to prove in this recent Ukrainian war scenario that the Russian tanks you claim have better sighting and communication systems. Ukraine ran into the classic barrel problem, and it was the other planks being too short that caused the Leopard tanks to struggle:
- lack of long-range demining systems, with only a few donated by the Americans
- lack of air power to assist with demining
- lack of means to counter enemy air power