As a note, Ranked Choice still has bullet voting. About 30% of voters in a ranked choice election bullet vote.
I think that stat could easily be attributed to a lack of familiarity with what is, to a lot of people, a new and different method of voting. You’d be surprised how many people don’t adequately read or understand directions.
In other words, what you’re describing isn’t inherent to the system itself and it could be much worse.
I’d guess that the number of people who bullet vote will decrease as the level of education and familiarity around “new” voting systems like RCV increases.
Afaik, you don’t have to rank every candidate in most RCV systems. So If you don’t like someone, you can just leave them unranked.