If Vaccine mRNA Alters DNA, What Does This Mean?

There’s been a lot of talk about a recent study, Intracellular Reverse Transcription of Pfizer BioNTech COVID-19 mRNA Vaccine BNT162b2 In Vitro in Human Liver Cell Line, showing that mRNA from the Pfizer/BioNTech vaccine BNT162b2 can integrate into human cell DNA. What does this mean?

More here: https://wholistic.substack.com/p/if-vaccine-mrna-alters-dna-what-does