I see both sides really. Some INDIVIDUAL dogs (not going to say breeds, because there are too many exceptions among breeds) are better off leash than others. For a while there I thought Lunar was going to be on a long line for the rest of his life. As an adult rescue who had been essentially feral for a long time, with major issues about being "caught", approaching humans was just too much of a conflict of emotions for him.
Bates issue was different, at his previous home, he was called to come before being punished for killing chickens so his default behavior was either to hit the ground and cower at "come" or, if he was a further distance away, he would turn and run away, looking for something to chase (because if someone is calling me it must mean there is prey around).
Now, Lunar and Bates are both perfect gentlemen off leash, and have great recalls - Bates' is way better than Lunar's because I've put way more work in to it.
Which leads me to.... Some owners are better equipped to teach recall than others. We live out in the boonies, so any puppy we bring home learns off leash recall with minimal effort on our part. Its all instinct - stay with mom and the other dogs, we capitalize on that, sometimes I might hide from the puppy and get the other dogs in on that game, and before you know it, I have a velcro dog who is great off leash.
Lunar and Bates got a chance to practice recall multiple times a day because that's where we live. Not everyone lives in the boonies though with the opportunity to practice every day multiple times a day.
I agree about the excuses though - the idea that I have a sibe who's never going to learn recall so don't bother teaching it. No, I don't agree. Teach it. Because you never know when something is going to happen and you find yourself with a dog off leash and you hoping, somehow, that he will come back.