When you read the report the delay comes across as logical.
Expansion of the FIFA World Club Cup, (Glazers are assuming United will qualify), which would result in greater TV revenue, and (possibly) a bigger fan base, the figure of £10bn in 2025 is meant to reflect that.
Do these figures really matter to a buyer who has money overflowing from a bottomless, after all why would a very rich man want to buy United in the first place.
The last transfer window has shown that the Saudi's are prepared to pay anything for what they see as a toy.