No it still sucks
Actually it's just bad, not stunningly terrible. Would have been better to go with a LP 90mm gun I suspect.
The problem is that the 90mm is no longer in US service which would have required a substantial amount of additional costs and would have forced the MGS model to jump through a number of additional procurement hoops. The Army wanted to avoid that, preferring 'seriously flawed but available' to 'superlative but canceled'.
Right now the Army is looking at light tanks. I don't think that's the best replacement for the MGS, but it may be procured for the role anyways to reduce procurement costs. A 90mm is still out, as the US Army still needs to avoid the costs of adding a new shell caliber.
He's probably talking about the Cockerill 90mm Mk3 low pressure 90mm, not the US M36. It's a HE/HEAT thrower, which is suitable for 7-10t vehicles.
I'm thinking a 120mm mortar would be more useful, vice the 105mm high pressure gun. Something like a Falarick 120mm GLATGM would also be highly useful.
The atrocity that is the US procurment system needs to be purged with fire. It's a greater enemy to the US than any foreign nation state. Not even joking. This is what happens when you let managerialists with nothing at stake have decision making authority.
It's like the helo mechanic being on the first flight after a repair, if you're not the guy using the gear, you don't have a say in the selection of the gear. S/F....Ken M