Ah, I understand now. I think you're right. In English there are many verbs that serve both as transitive and intransitive verbs, like "sail" or "hurt". Or, it has completely different words, like "rise" and "raise".
In Indonesian, as you've observed, there are usually different forms for transitive and intransitive, but with the same root words. We have berlayar/melayarkan, sakit/menyakiti, and naik/menaikkan.
And some things that look like transitive verbs are actually adjectives and don't require an object. For example, /Dia membosankan./ Looks like a transitive, active verb, right? But it means "He is boring." Doesn't require an object because it's functionally an adjective here. Or /Dia mengandung./ is a way of saying "She is pregnant."
Grammatically, looks like a verb. Functionally, actually an adjective.