I think that if the taxonomy is based on evolutionary paths, it's somewhat more "real" compared to the "looks alike" sense. The evolutionary paths could potentially give some insights, while grouping similar but genetically unrelated species is just a confusion in that sense.
On the other hand - classifying things based on their genome does not really help us understand the biomes.
On the other hand - classifying things based on their genome does not really help us understand the biomes.