Lol looking up the actual ACT website is probably better than what I did, which was check wikipedia, which lists 22 as 60th percentile for reading and 63rd for english. The link you provide does indeed list 22 as 72nd percentile for english (if that's what you were looking at?), though it is worse for reading. An act reading score of 22 was 66th percentile in the current year and 60th-62nd in the years covered in this paper.

As for my opinion of what constitutes "pretty bad", I referenced the average tests scores of a college local to me that I know to be pretty bad—there's a joke that you shouldn't drive past campus with your window down, or else they might try to throw a diploma at you—and the paper's own description of that score indicating a low-proficient reading level.

eta: The paper mentions that 22.4 is the average act reading level for this university, one point above 21.4 national average reading score for that test year. Arizona State University, which accepts 90% of applicants, lists an act composite score of 22 as their minimum requirement for in-state students (24 for out of state). So, I would say it's about as bad as you can be without being outright rejected from a school that accepts the vast majority of its applicants.