1996 Acura TL radiator cracked in two

Ive removed both fans w/ their shrouds sans removing the whole radiator. AC and radiator. Aside from draining and removing the top radiator hose and overflow hose ;they didnt need to. Just probably easier for them to remove it all and work outside the car. Now as far as it breaking in half, thats a little sketchy. Our radiators aluminum, the only way it "breaks in half" is if the fluid hasnt been mixed properly (50/50) or Honda Certified fluid. It would difficult to prove neglect on either parties behalf. Only way to prove it is by visually inspecting the old radiator and looking at the break points. Worn, eroded, eaten away.