No. We have recently updated the underlying databases for MicrobiomeAnalyst. Query names and set members are both mapped to the current NCBI scientific name before matching, so Firmicutes and Bacillota, Ruminococcus gnavus and Mediterraneibacter gnavus, Lactobacillus plantarum and Lactiplantibacillus plantarum all reach the same sets. Rank prefixes and underscores (s__Bacteroides_vulgatus) are also handled, so MetaPhlAn or QIIME-style names can be pasted as they are.
If a name is still highlighted as unmatched on the name-check page, it is usually a strain designation, a typo, or a name NCBI does not list; you can correct it there before proceeding. Strain names are matched exactly and are never renamed.