well, colonels is right about 1 thing. WIS almost certainly does NOT use true randomness. sadly, colonels also really has very little grasp of what this means.
colonels, to broaden your mind on the randomness thing, consider these quotes from the website you rely on:
"A good deal of research has gone into pseudo-random number theory, and modern algorithms for generating pseudo-random numbers are so good that the numbers look exactly like they were really random."
"These characteristics make TRNGs suitable for roughly the set of applications that PRNGs are unsuitable for, such as data encryption, games and gambling. Conversely, the poor efficiency and nondeterministic nature of TRNGs make them less suitable for simulation and modeling applications, which often require more data than it's feasible to generate with a TRNG. The following table contains a summary of which applications are best served by which type of generator: ... application: simulation and modeling, most suitable generator, PRNG"
The site you point out to explain your take on randomness explicitly states simulations, for example, this basketball simulation, are best served with pseudo random number generators. The vast majority of computer games do not use true randomness, nor should they.
It is also worth noting that no mathematician or scientist has even proven any true random number generator is any better than a pseudo random number generator in either of these 2 ways: 1) pulling number with uniform probability from the set of possibilities, which is the desired function of a RNG, or 2) producing a non-deterministic result when the point in the sequence of numbers is known