I would suggest to replace
If the path on a highway seems to take an exit ramp, then route right back on the highway on the onramp, Waze may have faulty speed data causing this navigation error. If possible, make sure to turn the stright-through turn restriction arrow to red to prevent this routing path. Only do so for ramp-only intersections that would not harm other local routing (such as those attached to frontage roads that must have straight-through routing).
with
If the path on a highway seems to take an exit ramp, then route right back on the highway on the onramp, make sure that both ramps have a different name than the highway, so the detour prevention mechanism can kick in and avoid routing via the ramps. It should not be necessary to turn the straight-through turn restriction arrow to red to prevent this routing path.
(feel free to rephrase in better English, I am not a native speaker)
The existing paragraph does not reflect the lately introduced detour prevention.