I would agree the skeptical approach is healthy. As the scientists involved mentioned in their live stream, there's definitely more work to be done to gather more information, and figure out why this substance is where it shouldn't be.
They were pretty clear in stating up front they have not ruled out abiotic processes, and are not declaring that they have discovered life. They state based on the known conditions of Venus and known chemical pathways to phosphine, and what is known about phosphine as a bio-marker, that life is a distinct possibility.
Through further research either we'll learn something new about Venus, phosphine production (which could improve our understanding of its relevance as a biomarker in the universe), or confirm some form of biological process.
They were pretty clear in stating up front they have not ruled out abiotic processes, and are not declaring that they have discovered life. They state based on the known conditions of Venus and known chemical pathways to phosphine, and what is known about phosphine as a bio-marker, that life is a distinct possibility.
Through further research either we'll learn something new about Venus, phosphine production (which could improve our understanding of its relevance as a biomarker in the universe), or confirm some form of biological process.