That's because the management is not the one who is trusted with Kashrus - it's the Kashrus organization.
The "Kashrus Organization", assuming such exists, rather than an individual providing the supervision, needs to be able to trust the owners prior to even considering certifying or supervising Kashrus.
I heard of someone who wanted to get a certain Kashrus Organization certification for ab establishment (year round, not Pesach). Since the proprietor was a שנה ופרש, to the extent that he even had semicha, the Kashrus Organization refused to consider it unless he had a bone fide partner they would be willing to trust.