Final answer:
The rhetorical strategy used in the excerpt is logos, as it presents a logical cause-and-effect argument about systemic constraints leading to discrimination.
Step-by-step explanation:
The rhetorical strategy employed in the excerpt "... physicians are tied to a system driven by time constraints and financial incentives, so it’s not shocking that physicians discriminate against those with disabilities" appears to be logos, which is an appeal to logic and reason.
The statement suggests a cause-and-effect relationship where the systemic constraints on physicians lead to a lack of fair treatment for patients with disabilities. This is presented as a logical conclusion to the described situation, rather than an emotional appeal or an attack on character, which would be indicative of pathos or ad hominem, respectively.