Question: If you had to design a bridge, and you did, and it was built, and then you noticed it sways in the wind, would you tear it down?
And if you answer yes: This is normal. Bridges are designed with a certain level of flex in mind, and they have redundancies to allow for this. Too much is a problem of course, but a certain amount is normal and budgeted for.
And it's similar here: The helium leaks were not planned to be there, but there's a certain redundancy in the system which means that a certain level of helium leakage is not an issue.