I think the same is true for when they started using blurs everywhere. They knew Android OEMs would copy it in a worse way and shoot themselves in the foot. That's also why material design doesn't rely on blur effects, it needs to run well on much worse hardware.

It's fun seeing the attempts to mimic Liquid Glass though, the most impressive so far is this Flutter package: https://pub.dev/packages/liquid_glass_renderer

Here is one with SVG filters (can be compute intensive):

[0]: https://codepen.io/rebane2001/details/OPVQXMv

That is a very impressive attempt at Liquid Glass! The whole cross-browser and cross-platform bit is still a challenge sadly → "Only works on Impeller, so Web, Windows, and Linux are entirely unsupported for now"