The very fact Gaijin is adding/removing shells from vehicles as they seem fit is a proof balance comes before anything else, rounds are just another way of balancing things. Me repeating it is just out of courtesy, because you seem unable to understand this simple thing.
There are four medium tanks at 9.0 that have stronger rounds than M774 and those are 120mm L23, Type 93 and 3BM28. Two of those are found on tanks that have longer reloads than TTS.
There are six medium tanks at 9.0 that have weaker rounds than M774.
I already told you what TTS does better than Leopard A1A1.
T-62M-1 has worse gun handling, gun depression, reload speed and no thermals. No commander override as well.
Type 74s have worse gun depression, optics and no thermals.
Chinese TTS has no ERA and a worse shell.
ZTZ88s have worse gun handling, gun depression, optics, reload speed, no thermals and a worse shell. No commander override as well.
OF-40 Mk.2A has no thermals and a worse shell.
Magach 6M has worse optics and a worse shell.
As you can see, TTS is better in various metrics when compared to it’s contemporaries, M833 is far from needed.
Sorry but obviously both me and Gaijin think differently.
