Nothing new here. The author is correct. You can blast at the end, BUT.., most of use here would rather prevent testicular atrophy during cycle than roll the dice at the end and hope for a restart.
I can assure you that while im preventing TA on cycle, because i've included my hCG on cycle, I know that my transition form on cycle to PCT will smoother than glass. There are no assurances when blasting at the end.