The Quran describes the steps of ablution, but it does not set any repetition, which suggests that this detail may not be important.
In that case, why continue to follow hadiths that add this kind of precision? It seems to make the practice more restrictive, even though the Quran presents it as something simple. If these additions are not clearly obligatory in the Quran, why give them so much importance?
Why consider wudu to be a form of spiritual purification? It can also be seen as a simple matter of hygiene, meant to avoid disturbing others during prayer, especially because of odors or dirt. From this perspective, it appears more like cleanliness and respect toward others than true spiritual purification. So why insist on that spiritual dimension?