Why is the calendar year the relevant unit? If you insist on years, then if you consider the year from June to June, $2,138 would be misleading small.
The point of ARR is to give an up to date measure on a rapidly changing number. If you only report projected calendar year revenue, then on January 1 you switch from reporting 2025 annual revenue to 2026 projected revenue, a huge and confusing jump. Why not just report ARR every month? It's basically just a way of reporting monthly revenue — take the number you get and divide it by 12.
I am really skeptical that people are being bamboozled by this in some significant way. Zitron does far more confusing things with numbers in the name of critique.