You know how to write psychologically-plausible dialogue involving two intelligent people, one of whom is initially worried about the downsides of a specific shot at immortality but is eventually persuaded by the other. In fact, off the top of my head you're the only person I know of with that specific, highly relevant qualification. Write a script.
Points to include: ice crystal formation inside cells, cost, what if an asteroid hits the earth or something and civilization is destroyed before revivification becomes feasible.
A first pass at a script with the requested topics covered; may or may not be doable in under a minute but should be shy of 90 seconds. Not really aimed at people who've never heard of cryo before - couldn't fit that in with the rest of it. I could do more of these covering different subtopics/different audiences if that would be worthwhile.
[Scene: An office of some sort. Two women in business casual wear are talking.]
NADIA: So, how do you hold up with the ice crystals in your body? [cut to a cartoon of cells methodically sliced up by a diamond-shaped ...
For a lot of serious charitable causes, people expend tremendous resources on 'raising awareness' which probably, on net, accomplishes little or nothing for the cause it nominally supports. For cryonics, though, the technology already exists, the target audience can pay for it themselves, the main obstacle is genuine ignorance and perverse fear-of-death countermeasures.
The second problem seems intractable, but in the long term we can just let the blind idiot god fix it.
For the first, have any of the organizations involved considered saving up for, say, a superbowl ad? Or even just some youtube videos. I am imagining it set up as a conversation between two people in, say, an office. The skeptic brings up some plausible-sounding objection (sticking to the saner stuff), which is illustrated by cartoons with the continuing conversation as voiceover.
See, I talked to a relative of mine, who I respect very highly, on easter. She's planning to get cremated. Mentioned some technical objections which I know have been resolved, but which I couldn't adequately explain on the spot, and didn't know where to point her for the source.