Here's an example of a phish actually using it: https://abyssdomain.expert/@filippo/114868224898553428 (also note "cat" is potentially another antipattern, less -U or cat -v is what you want).
Its zero. Zero people. Nobody is competent enough to download and review a bash script and also not recognise this obvious scam.
They probably threw the pipe detection in just because they could (and because it's talked about so frequently).