I don't think that equates being old school. I think saying "I'm old school" is just code for "I don't like how other people do things, so I'm going to throw a line in there that pretends like we did everything differently (better) in a past era."
I don't know if I'm new school or old school, or if that's even a thing, but I think when we try to make everything out to be a big deal, it's just silly.
So he didn't make a big, demonstrative celebration, while others choose to celebrate differently.
Fantastic.
They get paid millions to run around a field with a leather ball while thousands pay large amounts of money to scream and cheer and adore them. I imagine a group of people sitting on couches responding to comments about TD celebration decorum are less than inconsequential to them.
And, no, the irony of me using so many words to respond to a comment about being "old school" isn't lost on me.