No, they do this all the time. Did you fiance your house or car, or did you use your "Liquid Cash" to buy it outright?
I don't know about Dzingel, but I financed my first car on an open loan and paid it off 2 years into a 5 year loan, then bought my next car (new) outright in cash. My house I financed because I, like most people, didn't have 300+ k available, but I suspect that when my wife and I are empty nesters and ready to downsize, we'd use the cash from the sale of our current house to buy the next house and not finance when there is no need to.
The comparisons to business decisions doesn't hold up mind you, so I'm not sure why you'd bother asking.
All that said, the team getting a line of credit isn't the same as taking out a loan, so I don't have an issue with this at all, at least on the surface. I don't have the required knowledge of the teams cash flows and expenses, nor confirmed info on their assets and liabilities, so I won't comment much on this, however, it is a bit concerning that they announced 130 mil or thereabouts in financing a short time ago, another 30 mil just now, and could potentially have another 100 mil tied up in the leagues line of credit. That potentially puts us at almost 62% of the last valuation of the team. I doubt we've maxed out all our credit options, but that's what to me has the potential to make this scary.