Honestly it's still cut through, depends on what situation the tank may have.
Not try to be pacifist, but is it dumb to make unnecessary conflict with other western oriented doctrine country like AUS/SG. But yeah they have cool tanks.
Buy more is a way out, but not feasible for ID Army since the budget is choking the throat. MLU is the other way ot to get tiny portion of high end stuff, if the want it. Beside, existing leo 2 in ID Army inventory still can be upgraded to Leo2 PL standard for example. Retaining L44 not neccesarily bad, beside you can get DM53 or even DM63 with greater penetration value, put RCWS, or even Throphy APS; i think it was enough to make cavalery some fang & claw.
Beside, we didn't see any major tank to tank battle since Gulf war 2. Not even Nagorno-Karabakh or Russia Invasion of Ukraine occur to be major tank to tank battle.
Since then tank is not main focus of an assault but rather to be a complementary in combined assault doctrine.