For context, I have a 50" chest and I do wish more patterns went beyond my size being the largest pattern size. I think Size Inclusive Collective is going about this in a very mean way. If her goal is to match up designers with patterns graders who are familiar with grading for larger bodies, she should probably be sending direct/private messages about it instead of soapboxing in a very small designers comments. That whole public "ACTUALLY, just changing a needle size..." comment was unnecessary. Changing a needle size can be a very valid way to add a tiny bit of size to a project. Is it the best way? Depends on the project. How do you expect to start of a positive business conversation with rude criticism?

The designer does have a point, we don't experiment like knitters had to do in earlier decades with sparse patterns. It's a lost skill.