I personally never liked the idea of Greenlight, largely as it looked like a popularity contest from a day one. Game winning a popularity contest doesn’t make it a “good” game. Neither only “good” games should be published as this is something too subjective.
Greenlight is basically just replacing a publishers with opinion on what makes a good game and what would sell, with the same opinion of the crowd. It gives a chance to some games but it has the same limits.
A fee to entry, in my opinion, is more democratic and fair solution.
Yes, you would need to get somewhere those starting fees, yes it can be tough in certain cases. Here I mostly agree with @Ambershee and would prefer fee to be relatively high, maybe higher what steam suggest.
But hear me out, let’s say you just don’t have 1000-5000$ to publish your game on steam. Well, what will happen is that we will see a lot of smaller publishing companies that could help you out in such case - there are few of them because of Greenlight. Important part is that those small publisher will be working as a rick buffer + early prevention of low quality products from reaching market. To get signed up with them, you could first demonstrate viability of your product on other platforms. You could even run your own shop (I did this myself in past) and accumulate necessary fees on your own.
Overall, the argument that high entry fees are too high for some countries, can be turned into the opposite direction - if 5000$ is low wage yearly income in your country, selling just couple of thousands of copies can finance you for few year. To me this sounds like a golden deal. Especially taking into account that high entry fee will eliminate so many of your competitors who had barely any risks at all.
For countries with higher income, 5000$ might not a big problem to deal with, but your running costs are much higher too and making 20k in profit over something that you’ve spend a year working on, will drive you into debt.
A better manual curration is very welcome, but as some people already mentioned, should be limited to technical compliance - aka “does it run” and not be a judge to viability of the game in terms of it’s content. We already have publishers for this 
I very welcome this change. If fees are set to a certain reasonable level (at least 1k$ or higher) it will make a good change.