I just verified on my system. The profile does not get added with IM 6.7.7.4. But does get added with the current IM. I verified it with IM -verbose info and with Exiftool.
I cannot tell you what version is the first version above yours that works. But that seems moot. You have no recourse on the IM side. All you can do is complain to the xampp people that they are including a version of IM that 100 versions old. See if they will upgrade.
Otherwise, you can ask them if you or they can install IM manually and its delegates from source, though I understand that it is rather tedious to do so on Unix without RPMs.