I checked your link, then I proceeded to the terms of service and IANAL there they claim that all 'unicode software' is basically MIT licensed. (Please check with a lawyer before you conclude that word is MIT licensed.)
Fonts
The shapes of the reference glyphs used in these code charts are not prescriptive. Considerable variation is to be
expected in actual fonts. The particular fonts used in these charts were provided to the Unicode Consortium by a number
of different font designers, who own the rights to the fonts.
See http://www.unicode.org/charts/fonts.html for a list.
Terms of Use
You may freely use these code charts for personal or internal business uses only. You may not incorporate them either
wholly or in part into any product or publication, or otherwise distribute them without express written permission from
the Unicode Consortium. However, you may provide links to these charts.
The fonts and font data used in production of these code charts may NOT be extracted, or used in any other way in any
product or publication, without permission or license granted by the typeface owner(s).
The Unicode Consortium is not liable for errors or omissions in this file or the standard itself. Information on characters
added to the Unicode Standard since the publication of the most recent version of the Unicode Standard, as well as on
characters currently being considered for addition to the Unicode Standard can be found on the Unicode web site.
Now you can try to track down the actual typeface owners one by one (this alone seems hopeless) and even then I doubt that you can get permission from all of them.
