This paper focuses on developing assistive technologies for dysarthric speech, which is challenging due to limited data. Specifically, we note that despite recent advances in neural speech synthesis utilizing zero-shot speech replication techniques, these techniques can introduce biases in dysarthric speech. Using the TORGO dataset, we investigate the effectiveness of the state-of-the-art F5-TTS model in replicating dysarthric speech in terms of intelligence, speaker similarity, and prosody preservation. We also assess the disparity between dysarthric severity levels using inequity metrics (Disparate Impact and Parity Difference). Our results suggest that F5-TTS exhibits a stronger bias toward intelligence over speaker and prosody preservation in synthesizing dysarthric speech. These findings can contribute to the integration of fairness-conscious speech synthesis for dysarthric speech, thereby fostering the development of more comprehensive speech technologies.