Wow, back on topic, didn't think that would be possible. Of course no new ground is being covered here, just the same tired old arguments.
Shifting performance is a very big catch-all. It also includes issues of poor chainline, q-factor, increased chances of dropped chains, more difficult to set up properly to work well in all 3 rings, more front shifting required to go through the same range of gearing as a double with a wide casstte, etc, etc.
Weight always makes a difference. It's just a question of how much, at what cost, and is it important.
To you, sure. Obviously other people don't feel the same way.
Or you'll swear that your next cassette will have a larger cog
That is completely false. There may be hills for which
you require a 30t small ring, but the
hill does not require any particular gearing.