The top of the range you're quoting is for a typical Staff Software Engineer at Google/Facebook/Microsoft. "Top ML experts" garner much, much higher comp packages.
Yeah these ranges are such a joke. Top new grads at Google are getting comp packages along the lines of 115 base, 450 RSUs / 4 years, 60k signing, 15% bonus these days. L5s regularly make 400k+ all in.
The obvious reality is that top people rarely talk about their comp packages, as there is no reason to rock the boat.
Agreed though on total comp for top ML experts who have been around for a while - or the highest end.