From what I've read they both come at it from different angles.
Samuels appears to be old school, not fussed about the format but that the Champions League should just be for champions, and by including teams who finished in the top4 of the biggest leagues it caused further disparity between the richer clubs of the biggest nations.
To me, Delaney is just bemoaning that the likes of City are now competing for honours. We would not be getting articles like this from him (and nor did we) if United, Liverpool, and Arsenal were constantly in the latter stages.
His argument is that there are only certain teams able to win it now, when that was always the case (other than a brief period when English clubs were banned and it saw Steaua, Porto, PSV and Red Star win their first European Cups).
Since the anomaly that was Porto v Monaco there have been 19 CL Finals. 7 clubs ( Real, Barcelona, Bayern, Milan, Inter, Liverpool, and United) share 16 of those titles. Those clubs have been runners-up on 9 occasions.
Since Nottm. Forest beat Malmo in 1979 there has only been one final where both European Cup/Champions League finalists were making their first appearance at that stage guaranteeing a new winner of the competition. That was in 1991 when Red Star beat Marseille.