Nah. Its more about having the right tool for the job. The wider string spacing is more friendly to fingerstyle playing for the right hand. In addition, the use of various right hand techniques to achieve maximum timbral nuance is best served by this also. Bear in mind also that nylon strings vibrate very freely and need a high action to allow a wide range of dynamic response and minimbum in terms of fret buzz. When you play the classical reprtoire, youll find that there are often bass notes, melodic lines and inner voices being played simultaneously. With the higher action, wider string spacing allows for the left hand to play all the various voicings with no lateral impingement of the other strings by the left hand fingers. Same goes for the flat radius. It actually rewards good technique.
Whats all this mean?
It means that if yiou play classical style repertoire, then a classical style fingerboard and string spacing is actually the easiest ergonomic set up for that.
Its not juts about blind adherence to tradition. Quite the opposite. Classical technique has been developing constantly. MOdern players tend to use a different approach to Segovia etc. The shape of the classical guitar too has a function follows form style, and thechnique is purely to accomodate facilitating playing extremely complex pieces with a maximum of timbral variation and minimum of effort and potential soft tissue injury.
In fact it seems that classical players are often less bound by tradition than their electric playing couterparts. For example, you will find the vast majority of electric players sticking to a small handful of well known brands, whereas concert classical players tend to favor more unique pieces hand built by small manufacturers from all over the world. There is also many players whow have embraced the modern "lattice" bracing system which employs carbon fiber under the soundboard. Yoiu dont see too many electrics using carbon fiber in their construction - especially when it pertains to tonal production.
NOw if you are going to play Jimi Hendrix, Chicago Style blues, metal more modern shred tho...a classical is close to useless! lol
Its all about having the right tools for the job.