Sure, DSA is important, but its not all there is to programming. and If leetcode **only** tests how well you can manipulate arrays/trees/linked lists. Then I don't think it's competitive enough. and Neither do I think it's a competitive programming site.
Gotcha. Yes, youre 100% correct, DSA is not the only important aspect to computer engineering. But Leet code is good (ish) at what it does