When applying to YC, if you have a four or five person start-up team, if one member isn't able to come to Silicon Valley, but the rest are (3/4 or 4/5), how much does that penalize you?
The big problem is a 4 or 5 person founding team. That's a high bar to get over (but possible, one startup I really like in this batch has 5 founders).
What if the feedback is 'we think the market is too small'. It seems the way to improve is drastically change the product (/pivoting), or is there another way?
I don't consider it puffery. It was more or less about the general idea of the promise of startups in the new age, less about their opinions. It's about having more resources available than ever to innovate and really be passionate about your idea, leading to future success.