That's why I said personally. Boring is a subjective statement, you're writing off other peoples gameplay as easily as people write yours off...
There is less variety in extreme terrain, and we were also told in the Alpha that we didn't have the extremes as it hadn't been fully implemented. There's little to no change from Alpha, so we're still waiting for those extremes.
If you weren't selectively quoting me, you'd have read that I acknowledged that the "main problem, as I see it, is that most (all?) the interesting places in the Bubble have now disappeared and have been replaced with generic (bugged) planets."
But having spent more time outside the bubble than in, the majority of planets in Horizons are outright dull and uniform, and in my opinion, the Odyssey planet overall are an improvement. That doesn't mean that they've not taken away extremely interesting planets that were in Horizons or even written off entire sections of emergent gameplay.