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I don't get the people complaining that they need it on their low-power microcontrollers yet instead of using an XSLT library they'd rather pull in Chromium.

With how bloated browsers are right now, good riddance IMO

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They are not talking about pulling in Chromium on a microcontroller. Their web server is on a microcontroller, so they want to minimize server side CPU usage and force the browser to do their XSLT transformation.

Since it's a microcontroller, modifying that server and pushing the firmware update to users is probably also a pain.

Unusual use case, but an reasonable one.

Yeah, I don't think XML + XLST is any better than or allows anything that sending say JSON and transforming it with JS wouldn't. However that would require changing the firmware, which as you mention may be difficult or impossible.

I think they're talking about outputting XML+XSLT on those microcontrollers, i.e. just putting out text. Chromium would come in for the viewer who's loading whatever tiny status-webpage those microcontrollers are hosting on a separate device.

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