That's exactly how it has failed. One purpose was to illustrate that you could build affordable and liveable urban apartment buildings in high number and high quality.
You reporting 50 years later that you wish you could live there (I would also love to), illustrates that this didn't happen.
The area is just expensive as hell, final. Some of these cubes are horribly dated, but just the fact it's in the Old Port makes the price shoot way up.
I mean, you can say that, but, it's all mixed-use highrises around there. There are new thirty-story buildings going up all the time. I don't think there's much more that could be done policy-wise, it's just a desirable area -- and there's condos half the price ten minutes away by metro.
It's a quote (hence the ''). If you read the article you'll see it comes from https://thewalrus.ca/for-everyone-a-garden/, which (as others have said) says it 'failed' to be housing for everyone.
Not a bad thing, Montreal is literally an island and there are plenty of places with ugly moldy and unsafe *plexes wish were demolished and rebuilt like this https://goo.gl/maps/unYizR5WCsLT3QhK7 for example, if you remember how it looked before.