The transmission fluid cooler lines are I believe low pressure, unlike the oil cooler lines. They will *probably* be fine.

Typically you need a beaded end or barbs to ensure that the hose doesn't slip off, and you should check to see at least that the person who made this repair de-burred the line ends so it doesn't cut through from the inside.

My car had the oil line to the turbo "repaired" this way, ...

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