I'm sorry, I didn't intend to make a case for Japanese not rhyming with what I mentioned. I intended to illustrate how rhyming looks like in Japanese, but rereading my comment it does indeed look like that.
I just wanted to establish that Japanese poems were characterized primarily by # of syllables or # of morae, and were quite free in their distribution of stressed syllables or long/short (heavy/light) syllables, as opposed to most European forms.
I'd also like to address a misconception of the original comment I was responding to that rhyming in poetry is prevalent in a language because it takes skill. It's primarily a matter of poetic tradition whether a language's poetry cares about rhyme. As darkwater's comment points out, Italian has plenty of rhymes and its poetic forms use rhyming extensively.
So do Italian words, but we still have plenty of rhymes. From my almost non-existing Japanese knowledge, I don't really get what you mean.