The most recent data is from 2018, when they had an income of about 43M of which about 3.4M goes to the top 10 paid employees and the top two get 0.7M and 0.8M. The total salary budget is 35M, 25M of which are for "program services" (I guess creating content, developing the platform, etc.). This looks more reasonable compared to an organisation like Mozilla. Other things that jump out are half a million in legal fees and 1.8M for fundraising. In total, 43M out of 49M expenses in 2018 went to "program services", and they were running at a slight deficit. Looks pretty OK to me.
Assuming "information technology" means hosting, that's about 5M. Doing that times 2.5 would indeed create quite a problem, and that's assuming they don't need more people working on it to keep up with the new crowd.