It did draw extra attention, lots of extra attention actually. Navalny’s problems in the Russian prison system made the news frequently, regularly reminding everyone what a fucked up state Russia is. Immolating himself on the red square would have been far less effective since that’s been done a few times already (there’s been a few people who have immolated themselves there already). So as a suicide with a message/martyr for a cause, it was in my perception fairly effective at getting a message across I think. Point in case: we’re talking about it again even now …