I'm not much of a deep thinker and tend to rely a lot on "literally".
Such a filing would also offer the opportunity to skirt the common share calculation issue.
There's more. If the calculation uses the total vote as a criteria and DOESN'T consider Class B as a separate calculation, then:
Their 5,000,000 Class B's + 66,000,000 common result in total votes of 566,000,000. For that to be less than 10% of voting shares would require more than 5,660,000,000 total votes. There are 2,800,000,000 Class B votes, so there would have to be more than 2,860,000,000 common shares o/s.
Again:
"(ii) any beneficial owner of greater than 10% of a class of equity securities registered under Section 12 of the Exchange Act, as determined by voting or investment
control over the securities pursuant to Rule 16a-1(a)(1)
("ten percent holder");"