Before that awful run they’d won 7 and drawn 2 in the PL. Also for the last 11 games they’ve won 7 drawn 2 and lost 2.
Too much was read into one, admittedly very, poor spell and despite not being at their normal levels outside of that spell they’ve been in top 2 or 3 form for most of the season.
When Liverpool finished second in the 18-19 season they got 97 points, no team has beaten that since. So using Arteta logic Liverpool have won 6 titles in a row. Unlucky Arsenal.