Error is nothing new.
The error of the past on the part of religious teaches has been to present God as a great sovereign power who utilizes humanity without rhyme or reasons. The present error is the opposite, namely, that God is a great aimless, loving tendency that humanity utilizes to forgive itself, to cleanse itself, and to justify itself. The quote is very accurate, but the real point is that there has always been error and false teachers. All false teachers strip God of His glory, majesty, dominion, authority, justice, and holiness. There is nothing new about any of Jude's warnings and concerns.