Possible error in vignette - bouts

[aabydava]

In the vignette code example for bouts,

mvpa <- bouts(counts = counts.21007,
bout_length = 10,
thresh_lower = 2020,
tol = 2,
tol_lower = 100)
sum(mvpa)
#> [1] 10075
With this more forgiving algorithm, the subject is considered to have 21 rather than 0 minutes of bouted MVPA over the course of the week.

the function seems to classify nearly all data as MVPA bout, although it seems that it should be 21 minutes given the following sentence. Is this an error in the bouts function?