I think the criticism comes mostly from people with just a little knowledge, trying to sound and feel like they know more. Just a few talking points or principles enable you to criticize, but not seriously analyze (much less create).
All the new stuff, however, has marketing and looks shiny.
In fusion research, pessimism is realism. Especially in laser powered fusion.
This experiment is producing 2.5 MJ of output for 500 MJ of input.
Roughly once a day.
After decades of basic research.
It's a scientific breakthrough in the sense that the rocks are now being banged together hard enough to make sparks. And a little more is known about rock banging than was known ten years ago.
But it's clearly not going to be producing power on a commercial scale any time soon.
Instead, I'd like to suggest, in addition to having with cumulative exposure developed a severe hype allergy, a lot of us are burnt with respect to that so-called progress. There's been a fair bit of outright corrupted delivery on the promise of new technology, not least IT, and many people here are savvy enough to see the costs of wrongheaded changes.
'Move fast or not, we don't care much, but back off breaking things we liked and leaving the rest of us picking up the shards.'
Cars, TVs, phones, take your pick.
When demonstrable, measure progress is achieved, visitors of this site get very excited and positive, from things like the Rust language all the way to solar power and reusable rockets.
A breakthrough is a qualitative change, not (merely) quantitative. 95% to 96% of reaction energy output is a nice but quantitative advance. 99% to 101% is a qualitative breakthrough: suddenly, it's a surplus, actual generation.
We are still far away from the latter, alas.
I think it’s just the Zeitgeist. Social media has trained us that a certain reasoning style is rewarded, quick takes that don’t dig into the first principles and instead serve as shibboleths that you’re not one of THOSE types of unintellectual pseudo tech bros who bought NFTs or whatever.
[0] The saying is true IME: First they laugh at it (ridicule it), then they say it's not in the Bible (conflicts with the norm), then they say they believed it all along.
Everyone formed their opinion about eg. Blockchain a long time ago.
But they do admit that eg. Gpt-3 is pretty advanced, but has it's own flaws.