I think a large part of the problem is the "works on my machine" mentality which is all too easy for any web dev to slip into.
We sometimes forget our machines which are capable of running powerful IDEs, editors, and servers, are a lot more powerful than the average persons own device.
Single page apps can reduce the number of calls being made to a backend, and reduce the individual page load data, but sometimes we're focusing too much on the trees and not the forest. Those SPAs are huge in comparison, and with things like CSS-in-JS that further reduce the browsers own capability to cache things, we're introducing larger upfront load times. This all has a big impact on performance and accessibility.
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I think a large part of the problem is the "works on my machine" mentality which is all too easy for any web dev to slip into.
We sometimes forget our machines which are capable of running powerful IDEs, editors, and servers, are a lot more powerful than the average persons own device.
Single page apps can reduce the number of calls being made to a backend, and reduce the individual page load data, but sometimes we're focusing too much on the trees and not the forest. Those SPAs are huge in comparison, and with things like CSS-in-JS that further reduce the browsers own capability to cache things, we're introducing larger upfront load times. This all has a big impact on performance and accessibility.