All good points here. For those reading just the title, the article asks to critically examine what values you hold and whether selling is compatible with those values. For me, I see selling as just another step to growing the hoard, as you state in the article, but I don't think it becomes draconic in practice.
The key in my opinion and experience is making and selling micro projects, not banking on any one taking off. That way, you can have cash flow and a hoard. Throw the hoard into VTI and let it grow while living off the cash flow (and/or reinvesting it into the business), until the investments become enough to live off of entirely, ie the 4% rule. Pieter Levels or Daniel Vassallo are good examples of this.
Just keep trying, don't be saddened by another startup failure, at least you already have one sold which is a lot more than most founders can say.
I'm also in NYC, let me know if you want to chat, as you stated at the end of the post.