Further discussion and excerpts of the text which triggered the addition are now available here and here.
That the word "regret" was not used justifies its removal; however, the use of the words "sins", "committed" and "repented" might reasonably have led the editor concerned to believe that you did feel regret, at least at one time.
I could see the justification for including a passage contrasting your statements back then with those made at a later date, as it may help to explain your efforts to produce different works in the decade following 1958. However, biography editors suggest it is inappropriate to do so; it should be done by an independent third-party, which Wikipedians could reference.
Further discussion and excerpts of the text which triggered the addition are now available here and here.
That the word "regret" was not used justifies its removal; however, the use of the words "sins", "committed" and "repented" might reasonably have led the editor concerned to believe that you did feel regret, at least at one time.
I could see the justification for including a passage contrasting your statements back then with those made at a later date, as it may help to explain your efforts to produce different works in the decade following 1958. However, biography editors suggest it is inappropriate to do so; it should be done by an independent third-party, which Wikipedians could reference.