Companies using cursor could not care less about the CEO's ideology if they tried. Individuals may, but they don't matter in this context.
Even if the way they are doing it did damage coding performance, it is a simple matter of serving another model without that fine tuning in the enterprise API preferably only to the grok coding harness (or cursor, now). Coding performance for subscription plans don't move the needle in terms of revenue anyways and quality there doesn't matter as much.