The signer and the occupants are different people
A company holds the lease and its employees live in the house, sometimes rotating through it. That is a different occupancy pattern from a family tenancy: more turnover, less continuity, and nobody with a personal stake in the property. Carriers ask about occupancy, and the honest answer here is not "a tenant".
Who carries renters cover becomes unclear
With a family you can require tenant insurance in the lease. With rotating employees it is less obvious who would hold it. Addressing that in the corporate lease, rather than leaving it, keeps a real exposure off your policy.
Payment is more reliable, occupancy is less
A corporate tenant usually pays dependably, which is the attraction. The trade is higher turnover and heavier wear from occupants who are not making a home. Both sides of that belong in how the property is insured and maintained.