"Actually" (Whovian mode engaged)
Season 14 started in 1976 with Tom Baker in The Masque of Mandragora. Original Doctor Who was always "Seasons". The 2005 reboot switched to calling them "Series" presumably to avoid confusion. Of course, this series is back to "Season 1" because reasons. Basically the article is all wrong.
You need to watch the Jodie Whittaker run to get that whole storyline. I dropped off halfway through Capaldi and only went back (completely spoiler free so no expectations) last year to watch his last season plus Jodie. I'd recommend doing a catch-up actually... I really enjoyed about 75% of it, although some episodes (non story arc ones) are proper clunkers. Some fans got quite riled up over the main Jodie story arc and wanted RTD to retcon it all, but he seems to be really leaning into it.