That is the trend. I swear I remember seeing data further back and it’s even more apparent. I don’t think it’s just GT though. You can see similar trends at Berkeley.
I remember when I graduated back in the dark ages. A 2.8 GPA was respectable for engineering. Anything above a 3.0 was genius level. I’m only half joking.
I believe it! The school my son graduated from is still the same. A SE graduated with a 4.0 the year my son finished in ME. It had been 10 years since the last 4.0 in any engineering discipline.