I was considering an upgrade this fall. I think I can do another year or two without. who knows, I might the same spec for even more $$. Just as the trend goes....
I first tested Astro on my site and never went back. Now every new project defaults to Astro and I have to have a reason not to use it. So far no reasons. It's simple, fast and it kinda fits my desire to keep things minimal. For example, yes, page content matters, but all but one page on my site is under 10kb, most hovering in the 3-4kb range (100% of the downloadable content)
To his point - I would say, it's a bug factor BECAUSE on average their culture seems more safe. But it's not because it's monocultural. Bad "monoculture" is bad, good one is good, nothing complex there. Simplifying, but that's pretty much what is said
there's a different level of 'good-enough' in each industry and that's normal. When your highest damage of a bad site is reduced revenue (or even just missed free user), you have lower motivation to do it right compared to a living human coming back in one piece.
To me it seems that the path to seniority would shift. It is difficult to answer because we're looking at it from the lens of 'fundamental knowledge'. Instead, to me it seems that now this is less of a requirement compared to 'systems-level thinking'. A very simple example could be the language syntax vs the program structure/parts working together. And with this, a junior developer would still lack this experience and I don't think AI tools would be a problem in developing it.
All I say though is from the perspective of self-taught dev, not a CS student. The current level of LLMs is still far from being a proper replacement to fundamental skills in complex software in my eyes. But it's only in it's worst version it will be from now on.
to add to the rest of the comments, a reliability standard also adds on cost. The scale is different, but compare a car bolt vs manned space mission craft's bolt.
for writing - instead, it might've been more useful of a plugin if it was targeted at specific problem. Example - creative writing - if you had LSP-like feature on top that can link to characters, scenes, add scenes, find chapters, jump between content. Add character bio, traits and more and have easy "peak" as in a function signature to see details. I know it's different than what the plugin showcases, just sharing thoughts on what I find as a meaningful feature add. here, it's just as commented below, it's basically Vim.