Yeah that’s nuts. Toe change is generally considered to be acceptable if it’s less than 1/16” per inch of travel. So for the whole range of travel on these cars you’d be looking for less than ~.34” of toe change.
When Bill Reilly did the toe change measurements on an A body for the FMJ spindle swap he was getting less than .1” of toe change for the whole 5.5” range of travel he measured with A-body spindles and less than .2” of toe change with the FMJ spindles. You can see the results he plotted in this article
I would guess something other than toe change is being measured here, because if the true toe change was 1.75” on about half the range of travel the car wouldn’t just pull on launch, it would be downright undrivable. That’s off by a factor of 10! Even something in the 1/2” range would be pretty terrible.