Exactly. It's okay to not be into it at all, it happens.
That being said, when I was first played Demon's Souls when it launched, I couldn't get into it at all. I hated it, didn't understand the praise, etc. Years later I gave it another shot and it clicked, and hard. I immediately went through all the games at that point.
If it's not for you, it's not for you. But I think it's important to acknowledge them. Hell, when it didn't click with me, I still appreciated so much about them. I just didn't "get" them. But in time, I did, and hard.