They sound
different and that’s the point. There’s a whole genre of music that sounds like vinyl or staticy tapes. Clearly people like it.
People are going to express preferences for one or the other, telling people that LEDs are exact equivalents is just wrong.
We can say, “yes they’re different, but the environment is more important [1], suck it up” but it changes the tone.
[1] Which is such a joke, the waste from my electric stove or leaving the window open with the AC on uses more than the savings from LEDs. Halogens are already more expensive and you pay per watt so there’s not some horrible externality not being priced in.