> Don't write it off until you've genuinely seen the upsides.
This is ridiculous. Basically you're saying "if you try it and find it sucks, you're wrong, keep at it until you change your mind". That isn't a tool at that point, it's a religion.
No, it just means you have to learn to use the tool well.
No, they're saying there are upsides, even if you think they are small, or think they don't outweigh the downsides, you at least have to be honest about where the utility is.
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Of course you don't need to keep trying until you think it's good. But if you haven't found anything it's good at, and meanwhile lots of smart and seemingly-honest people are saying they've found it to be very good at some things, then it's pretty likely that you really are holding it wrong (and perhaps not even trying to hold it right in the first place).