Been a while for me to YYZ (ex777). With those conditions, I'd prefer 5kts TWC on landing with a headwind down final rather than 25kts TWC at 600ft (2nm). Ideally, it would be a headwind all the way down. Our stabilised approach criteria mean everything has to be in place (stable, correct configuration, power up) by 500' radio at the latest. We could achieve the first two but you could easily find yourself with idle thrust trying to overcome the inertia caused by the large tailwind. Not a good place to be at that stage.
5kts TWC on touchdown shouldn't be a problem for most airliners, provided the runway isn't slippery or contaminated.