Is a 7.25 rear strong enough?

1968 Dart 270 said

ironically “Uncle Tony” is one of the few people to defend the 7.25 rear ends and in one of his videos on mopar rear ends actually say something positive about them.

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I'm the other one, except for the fact parts are made of unobtanium. They are lighter, and take less power away from the wheels (like a 904 compared to a 727). I wouldn't use a 7 1/4 behind a stick trans, and submitting it to shock loads, but they hold up pretty good with a built slant or mild 273/318 and a auto trans.
PS: the sure grip spiders are stronger because there are 4 spider gears, unlike the open rears which only have two spiders.