Is it okay to not name miscarried babies?

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I did not name my miscarried baby (and would not in the future) because I feel like they are now up in heaven and not part of this world. Names are what define who you are on earth and if you're skipping that part I didn't find it necessary. Is that strange or cruel? 

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I understand why others give names because it gives them closure and gives them meaning and such and I would never criticize their decisions... Everyone has their own way to grieve and each way is just as important...

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But several people have called me unfeeling recently (and in the past) because of my decision to forgo a name. I don't see why my way of grieving isn't as okay as others' way of grieving. It's almost been 2 years from my miscarriage and I'm finally feeling okay about it, it took me almost a year to stop crying. I don't know how that could be unfeeling... I don't understand how, just because I didn't name him/her, I could forget them. 😢