This article is not going to be popular with the Grace -covers-all crowd!
Thanks for posting it!
Grace does cover all.
The regenerate desire and strive to keep the law.
There is no tension here.
It is so easy to make a point using isolated quotes from Scripture, but it must be complete within context to supply the proper theme and conversation
Paul complies the thought at the end of Chapter 7, and encapsulates it in the first part of Chapter 8...
Romans 8: 1 Therefore, there is now no condemnation for those who are in Christ Jesus, 2 because through Christ Jesus the law of the Spirit who gives life has set you free from the law of sin and death. 3 For what the law was powerless to do because it was weakened by the flesh, God did by sending his own Son in the likeness of sinful flesh to be a sin offering. And so he condemned sin in the flesh, 4 in order that the righteous requirement of the law might be fully met in us, who do not live according to the flesh but according to the Spirit. ...
Sola Gratia, as affirmed by the Council of Orange in 529 AD. In that sense, I would say that grace does cover everthing — perhaps not in the sense you mean though.
And the LETTER found in Acts 15 is not 'popular' with you!