Yes, FIPSAS adopted modern "tech" standards for advanced specialties (deep, cave, wrecks, helium mixtures, ECC rebreathers, etc.).Even FFESSM, the French organization affiliated with CMAS. However, CMAS training is very different in terms of content and philosophy with respect to GUE, and I believe it's very hard to compare them, if useful at all. Again, there is not best agencies, just different ones with different pros and cons.
One of the cons of FFESSM (according to some instructors of the organization) is that its methods are a bit old. Some thinks the organization should go under a modernization process.
CMAS should reform itself as well according to this way of thinking, since it allows the "old" standards of FFESSM. I know FIPSAS went under a modernization process (at least for technical and cave curricula), while for BSAC I cannot say anything. @Edward3c do you anything about it? How does BSAC stay on pace with the new development and discoveries related to scuba diving world? (I am really curious, it's not an attack to BSAC)
But here we are discussing basic training: for this, FIPSAS maintained a thorough approach, where at the very first course a complete set of information and training is given, well beyond American-style OW courses.
Regarding "philosophy", I think that it is a concept typical to DIR/GUE. Most other agencies do not even attempt to teach any "philosophy", despite many years ago in FIPSAS there was an attempt to adopt the "philosophy" developed by Jacques Mayol, usually know as the "homo delphinus" theory.
This was mostly related with free diving (which, at the time, was a core part of the first-degree course: the first half of the course, lasting three months, was entirely done free diving, and only during the last three months scuba systems, mostly pure-oxygen CC rebreathers, were used).
When the training program was revised, reducing the length of the first course to "just" three months, and replacing the ARO CC rebreathers with single-tank OC systems with BCD, the free-diving part was reduced, and the philosophical and behavioural training for exploiting the mammalian reflexes (the core concept of the "homo delphinus" theory) was substantially removed. So no "philosophical" training is currently given in first-degree FIPSAS courses...
This was moved to specialised free-diving courses, and to the "Apnea Academy" founded by Umberto Pellizzari.
It must be noticed that the old "homo delphinus" philosophy, which was taught here when I followed my first degree course, is conflicting strongly with the GUE-DIR philosophy.
But I would not go too much OT discussing the strong differences between these two philosophies...