Yes, this is an apt qualification brother. I think too many people stop reading Eph. 2 at v. 9, and fail to appreciate the impact of v. 10 predicated upon 8 &9.
Eph 2:8-10
8 For by grace you have been saved through faith; and this is not your own doing, it is the gift of God - 9 not because of works, lest any man should boast. 10 For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.
When people start ranting that no one was able to keep the Law, I always think of the parents of John the Baptist.
Luke 1:5-6
5 In the days of Herod, king of Judea, there was a priest named Zechari’ah, of the division of Abi’jah; and he had a wife of the daughters of Aaron, and her name was Elizabeth. 6 And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless.
I am sure they also fell short at times, and used the provisions that were under the Law to seek atonement as God had proscribed.
How were they able to walk obediently, righteously and blamelessly? Just like all were expected to do - by grace, through faith.