Essentially, you bought a disposable pan, seasoned, oiled popcorn ... You'll be using more oil or butter than in a silicone ...
Did you know ancient Peruvians invented the popcorn popper? And although I love my yellow Proper Popper, theirs was quite aesthetic. Many early versions of corn were only edible as popcorn ...
It, however, would do best to heat up the pan over medium heat and occasionally ... for the frequent popcorn maker, a stovetop or air popper is probably the more reliable and more health-conscious ...