Marques Brownlee (MKBHD) mentioned that his right capacitive turn signal button is occasionally unresponsive with his Model S Plaid and he's had to resort to lane changes without a turn signal https://www.youtube.com/watch?v=34VZzBWBDN0&t=648s

Granted, this is one anecdotal case. But when spending over 100K on a car, features like this should be bullet-proof.

Actually ... scratch that. Features like this should be bullet-proof because they have been a solved problem for ~50+ years. Tesla is sacrificing safety for minimal cost savings and/or style points.