The biggest difference is in the accounting and how much more scrutiny is required for the use a company plane because the expenses of operating a company-owned plane can be used to reduce the amount of taxable revenue for the company AKA tax writeoff. However, I sometimes forget that LMG is a Canadian company, and maybe their tax system is totally different.
He mentioned in one video that he's confident LMG will be able to sell the plane for the same price, if not more than what LMG paid for it, effectively costing the company nothing in the long run while providing a lot of content. That's assuming a lot, and I don't think it's worth the risk, but power to him if his plan works.