Correct, DNA is just one element of a complete organismal informatics, you need vastly more than just the genome sequence to ressurect a species. Relatively simple microbes, or recently extinct mammals where you have a semi-plausible scheme involving suitable host cells and embryo implantation technology are exceptional cases.
One thing to realize is there are significant numbers of species that have such complex ecological dependencies that we don't know how to keep them alive outside of their natural habitat anyway, even if we could manufacture them from scratch. I've worked in labs studying mycorrhizal fungi, parasitic and mycoheterotrophic plants, soil protists, rare insects... Often, even if the species is well-characterized and we have plenty of living samples, the life-cycle still cannot be completed and a viable population cannot be maintained in artificial conditions.
Environmental genomic sampling is relatively easy to do, trendy, easy to get funding for. Conservation biology produces vast amounts of this data. But it mostly serves as an "ark" in terms of individual genes, gene products, limited gene networks, not the integrated individual. We've got very good at collating and maintaining vast databases of this stuff and very bad at stopping the actual biodiversity getting destroyed. Research on "how actually do we keep more species alive in the first place" does not get enough money or attention.