Do not assume that it does. The official FAQ describes the instructed gift to the United States after vetting, not a private investment purchase.
Identify where the money actually goes
Read the agreement and payment recipient. Shares, property, a loan and a government gift are different transactions; the use of the program’s name in a brochure does not make them interchangeable. Read the agreement in the order that answers the question fastest: payee first, then what the payer receives, then what happens if the project fails.
A purchase of units gives the payer an interest in a company and a share of its fortunes. The payment described in the official instructions is made by the applicant to the U.S. government after vetting, gives the payer no interest in anything, and is not recoverable as an investment would be.
Because those are different transactions with different consequences, a document describing one cannot be evidence of the other, whatever name appears at the top of the page. Where a promoter's paperwork mixes the two, ask for the parts to be separated before any money moves. Hypothetical example: a firm repairing precision instruments is shown a single package covering both a unit purchase and a programme fee, and the payee fields turn out to name two entirely different recipients.