Are you trying to point out a big-picture discrepancy like "Can't you save the image, huh?"? Personally, I think if the original isn't being taken, there's no need to worry. Whether it's a gap in the protection or an unavoidable web page specification... If it can be fixed, have them fix it; if not, well, you just have to put up with it—small inconsistencies happen everywhere.
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From here on, it's about the perspective of the user.
Check the difference between the resolution of the image your friend has and the one displayed on your screen (the resolution you set when generating it), and see how you feel about it as a file.
If they were able to save the original:
→ Your friend's environment is special, and the admin can't do anything about it. Your friend is a step above in many ways—they don't care about rules, etc. They've bypassed the system meant to prevent it, so there's nothing you can do.
If the resolution or file size is smaller than the original:
→ The original is technically protected, and they're just saving a degraded thumbnail...
It comes down to whether you can be generous enough to say, "(You poor thing, stuck with a degraded copy.) Want me to give you the original?" lol
