All the examples in that article come across as instances of a "praise sandwich" (also known by a less savoury name). The formula is, "We thought you were good

All the examples in that article come across as instances of a "praise sandwich" (also known by a less savoury name). The formula is, "We thought you were good at X, BUT, we need someone also good at Y". Perhaps it's the impact of reading them all back-to-back, but the insincerity of that interstitial BUT begins to stand out. The impact of reading this feedback is to discount the praise, and emphasize the gaps. Given that, the feedback doesn't seem specific and actionable enough in most cases. The last example in particular, I parse as [we appreciate your interest, but your skills aren't good enough], which I'm struggling to read as better than the standard template.