I appreciate and support the idea that the so-called long form is problematic, but minutely examining character shapes seems a waste of time, since scanning commonly introduces distortions like this.
To you, I say, "BS"!
I just happen to have a scanned copy of a Xerox copy of a letter I typed back in 1971 on a manual typewriter with a cloth ribbon. Here are the four capital 'R's from that letter:
The differences are entirely due to the force with which I struck the key when I typed.
ML/NJ
Show how scanning makes similar distortions, that sounds very unlikely to me.