Where precisely is the discrimination?
To quote again the Supreme Court decision in Thomas v. Review Board (emphasis mine):
Only if you believe that a letter of recommendation is an entitlement, sort of like a social promotion.
"The mere fact that the petitioner's religious practice is burdened by a governmental program does not mean that an exemption accommodating his practice must be granted. The state may justify an inroad on religious liberty by showing that it is the least restrictive means of achieving some compelling state interest. However, it is still true that "[t]he essence of all that has been said and written on the subject is that only those interests of the highest order . . . can overbalance legitimate claims to the free exercise of religion." Wisconsin v. Yoder, supra, 406 U.S., at 215, 92 S.Ct., at 1533." (450 U.S. 707 at 718).
It seems to me that Texas Tech will be able to slam dunk the question as to whether the state has a compelling interest in promoting in its scientists a belief in the scientific method. Be that as it may, I am not convinced this is the best applicable case from the USSC regarding the First Amendment as it would apply to this issue.
Furthermore, like Catspaw, I don't see where the young man has standing to sue. Had he had any sense, he would have taken the course, professed his believe in Evolution, asked for a recommendation, and only kicked up his heels once he was turned down. As it is, the case is a non-starter. There is no there there.