Blogs usually reflect just the author's opinion. If he doesn't explain why he thinks so it could be just that he is making an unfounded generalization. This is very common on the internet, and especially among inexperienced, or those with direct commercial interest.
For some beginners wedges are best, for other beginners full hollows are best, and yet for others somewhere in the middle is best. It's exactly the same with the round vs. square point.
There is one thing that is best though - to learn what are the differences, and then pick the type that matches better with your particular level of dexterity.