It is not easy to design a different nuclear division, which can bring an outcome as meiosis.
The outcome of meiosis is:
1. The chromosomal content is halved.
2. Genetic diversity is produced among progeny.
To design a cell division to produce progeny with half number of chromosomes, we think of omitting the DNA replication, which happens prior to meiosis.
Take a single cell and then make the homologous chromosome pair, then recombine. The metaphase with random the alignment, and separate during anaphase. And two daughter cells are formed. In this way, there will be halve chromosomal content, as well as genetic diversity would be produced.
Homologous chromosomes->pairing->recombining->metaphase (random alignment---anaphase (separation)Two daughter cells with half number of chromosomes.
Due to replication, there will be repairing and checking of DNA. If we omit the replication, we will lose the chance of repairing and checking of DNA.
Thus, the phenomenon of cell division-meiosis is happening, for billions of years. Hence, designing a new cell division is not easy.