You said "the entire sporting world's definition"-- that is simply not true.
It's really simple: if one team gets to stay at home, follow their normal routine, and spend FAR less time and money and effort getting to the game versus the other team's time, money, and effort spent getting to the game (which also entails a significant disruption to their normal preparation routine) then, by definition, it is not an equal challenge for both teams to prepare for, attend, and play in the game-- and, in my opinion (and the opinion of literally millions of other sports fans-- an opinion that is then supported and substantiated by the expressed desire of EVERY team to play games at home or close by, if given the opportunity) that is not a fair set-up for a game that, by definition, should offer no advantages to either team (other than the advantages that each team has within its own control, such as player selection, coaching, etc.).
In other words, the OHSAA, as the ostensibly neutral organizer of these championship games should be striving to offer NO advantage to any competing teams-- and should seek to minimize granting any advantage to any teams, wherever feasible and reasonable-- and it is quite feasible and reasonable to provide a fairer venue for these games than Canton. It's the REASON WHY, in the games leading up to the state finals, the OHSAA seeks to find playing venues that are fairly positioned between the two competing schools; why that is NOT a consideration of the OHSAA, when it comes to the final game, is both ridiculous and incomprehensible.