The key to a success of this type is luck. Sure, you can optimize for being on the path of success, but majority will still be missed.
What an odd mentality.
No, the key to success is skill, with effort (grit?) thrown in there as well. Luck can sometimes play a significant factor, all else being equal. But the idea that everyone is equally "good" at things, or put in the same effort, and that it's mere chance that success happens to someone is...pessimistic to say the least.
It is rare to find someone very lazy or completely talentless among the most successful, so it must be hard work and talent, right? No, because it's easy to find very hard-working and talented people who are not successful. In fact, according to research[0], the most successful are usually not the most talented, but those of mediocre talent and a lot of luck.
But luck is a huge component in getting wealthy. Plenty of people with equal skills, equal expertise, and equal hard work never succeed because they don't get the magical conjunction of right time at the right place.
That being said, it doesn't mean that one shouldn't hone their skills and try to be successful. It's just that it's not likely that you will have such meteoric success no matter the skill or effort you put in.
Luck doesn't just play a significant factor, luck almost always plays the biggest factor. But being skillful and putting in effort is the only thing you can change and definitely does help too.
But your point is entirely correct.
MKBHD could have picked up something much less refined and it would have been popular, a different designer dabbling with no prior mobile icon interest could have come up with something appealing to others as well.
Being there and getting an influencer is what made this story, and can be repeated by anyone. OP is conflating the rest of it with his own trials and tribulations.
I think MKBHD also has to worry about his reputation, if he promoted something less refined his viewers might get pissed off.
The key to finding those 3626 people willing to shell out $28 was the exposure, with MKBHD being the biggest contributor.
Whatever was the key to getting that exposure in the first place is irrelevant to my point.
He succeeded because his time to market was shorter than anyone else's.