I can't really see wizards as the intelligent type. In a land with catapults, medicines, crossbows, drawbridges, and other clever things invented by genuinely intelligent people, why do you need what is effectively a crude mimicry of an intelligence? There are evidently plenty of actually-smart people around. I mean, legends has it that Archimedes set ships on fire with the power of the sun, not by chanting some made-up smart-person words, or by taking a smart-person book from a smart-person library and reading it smartly, by using mirrors and focusing light. Now that would be true intelligence.
I could, in some situations, consider it almost insulting. The implication being that if it's something intelligent, you can't understand it, so if we have some bearded person do something you can't understand, then they must be intelligent.
Ugh, I suppose I'm just not a fan of the whole concept of magic. It cannot by definition be understood, therefore it's just not that interesting to me
That is an extremely modernistic viewpoint that goes back to the same old hacked "Technology versus magic". Especially in light that Wizards are usually "scientists".
It usually requires a lot of intelligence because Wizards actually need to memorize huge volumes of tombs, understand the physical laws of the universe, and then connect these laws in a way to create "magical" effects.
In fact here we go
Technology Versus MagicDEAR HOLY GOODNESS! Why ohh why do we keep going back to this theme especially when neither of these things contradicted eachother at any other point of time EXCEPT when the 2000s rolled around.
I still remember the description of the Dark Legions Wizard where they actually were quite inventive and used science to enhance their magic (magic itself being an invention).
But most of all the reason why this bugs me the most is... Why would science be against magic? Sure lets say magic is an unknown... Science would want to know what it is. Why the world is science going so insane and becoming irrational? Science you STARTED OFF as "magic" you had to because it is impossible to start as science unless you are derived from another science.
And why would MAGIC be against science? Magic is ultimately just someone trying to grasp the unknowable vasts of the universe to try to gleam some use or truth from it. It is unknowable because the universe is unknowable and that often they are drawing upon laws much higher then physical ones. Science is just magic that everyone knows. Science is the box that has already been opened. Magic is attempting to open that box.
Princess Bubblegum wasn't against "Magic" because it is unscientific but because wizards were irresponsible and were carefully guarding their secrets to keep people in a state of ignorance... as well as her own people choosing magic over her medicines which she knows will work. Yet she wasn't the good guy in that story.
It is just flat out bad story telling and irrational short hand... for...
RELIGION VERSUS RATIONAL THOUGHT...
That is the plotline they actually want to do... Why don't you just do it? SMT isn't afraid to have their protagonists kill the Abrahamic god.