Yes the weightings are a guess at best. We don't have the numbers to validate without a tonne of investigation.
In Ted's interview posted by DuzySerce said that most of the revenues are predominantly US based - ie Winter season So if Q1, Q2 are low, and Ted is making statements like:
- The first 7 days of Q2 2019 have yielded the strongest start of aquarter for the programmatic product in company history - The first 7 days of Q2 2019 were 228% of the first 7 days of Q12019
Then by your estimated weightings Q3/Q4 are definitely going to be huge. Even if the SP it drops now (not saying that it will), Q2/Q3 announcements will see it bounce to new highs for those who hang on long term.
We are putting a lot of faith in Ted though. CEOs/Entrepreneurs tend to be over ambitious with their goals.