Not true. Style Lock is deactivated if you change Jobs in FFXI (meaning you lose whatever appearance you have glamoured), thus preventing you from adding AF to the wrong Job just like it is here in FFXIV (if it actually allowed it, then that is something that was only possible for a short time and was changed,
as shown here:
Although I do agree FFXI's Style Lock is a better system than FFXIV's Glamour Prisms, it's not perfect, and has it's own set of issues. And as has been mentioned, it was only implemented into the game anyway
because FFXIV had already implemented it, FFXI is merely playing catch-up. Either way, although the current system can be improved, it's better than no glamour at all. People should really be grateful for what we have instead of constantly demanding "MOAR!" First World Problems I guess...