This happens in most vehicles because the windshield usually drains directly into the cowl, where the cabin air intake is. I suspect the reason automakers have never addressed this is beancounters in accounting won't allow it because the minor annoyance has never hurt sales. An activated carbon filter mitigates it somewhat, but not fully.
The OEM washer fluid in mine smelled like it had glycol in it. Once I ran through the first few litres I stopped worrying about having a coolant leak...