Wow, wrong right out of the box. You are obviously an expert. LOL
The way the author describes UTRs in the article, he makes no distinction between the 5’ and 3’ UTRs and introns. Both were known even before introns. It was known that there had to be regions 5’ (upstream) where the translation machinery (ribosomes and associated proteins) had to bind to start synthesizing proteins. More recently it was found that the 3’ end contains sequence motifs (not necessarily specific bases) to tell the cell to stop transcription . These are likely the 3D structure the mRNA makes and not specifically the sequence. You have this idea that this “ancient” history is somehow new. None of this repudiattes evolution at all.