Can a company with 2 leaders move between havens

[Gamling the Old]

A minion company has 2 leaders. Can it move between haven or is the 'limbo' in between enough to violate the rule :

"A company can only contain one leader unless at a haven."

[Konrad Klar]

If a company is in a moving state, then it is not at a haven.
So this is a violation of the rule.

P.S. Not sure whether such a company may use the Bill the Pony's ability, even if the destination site is Wizardhaven.
E.g. a company with two leaders is at The White Towers and has to be moved to Rivendell that is Wizardhaven (thanks to Mischief in a Mean Way).
Replacing the site card is considered movement, but does it mean that a company is in a moving state by any moment?

Card Erratum: The body should be 10, not 6. Bill the Pony's special ability may not be
used at an Under-deeps site. Replacing the site card is considered movement, without
a movement/hazard phase. For a Fallen-wizard the nearest Haven is the site listed as
the nearest Haven on the hero version of the site you are currently at.

[Gamling the Old]

Thanks !! Had the same opinion