This still doesn't address the differences in leveling and total comp. It seems like this only applies to base salary. And even then you'll get a wide salary range which won't actually tell you much until they determine your level.

Someone else posted about Buffer earlier and the great thing they do is share the actual formula they used. Having some standards for base is great. It's the OTHER factors that I'm most concerned about and that part should at least be revealed at a high level so candidates can negotiate for their desired figures.