Which is why he had multiple Beast, Rock and Dragon-Types in his deck, right? Also worth noting that Garoozis and Panther Warrior are the only Beast-Warriors he used beyond Duelist Kingdom. (Though that reminds me: Why exactly are Alligator's Sword and Hayabusa Knight not Beast-Warrior? They're animals wielding swords.)
The Rock monsters were mostly used during the 1st season. His deck even included Fiend(Claw Reacher), Spellcaster(Copycat, Flame Manipulator) and Aqua(The Furious Sea King) types, which make your arguments even more contradicting.
Aligator's sword is another example, but they even put it in the Beast type which even worse since it wields a sword. Hayabusha has only an avian head, not bothering me
1. What the heck "Garoozis" means?
2. The fact that konami places reptilian monsters as Beasts or Beast-Warriors pisses me off.
The words are mostly synonymous. It did indeed used to refer to "created beings", but that usage is virtually extinct. Indeed, most current definitions of the word "creature" are along the lines of "a living creature, either an animal or a human". I'll point to Wikipedia's page on legendary creatures's definition as a practical example: "a fictitious, imaginary and often supernatural animal"
Except that article's referred to animals (through several rewrites and revisions, might I add) for the last five years.
And you're right. You could technically consider basically any monster that's a living being and not a plant to come under the Beast type. But they chose not to do that. The way you're arguing is like saying "a frog's an amphibian, not an animal", which is just wrong.
Frogs are contained in the Aqua type which is the most properly correct for them.
My arguments are based in pure logic.
The 80% of the monsters that they put in the Beast type depict mammals. Then, they randomly put without giving much of a thought less than 5 monsters that have apparent reptilian and dragonic visual characteristics.
It's a sign of lazyness to me.