For speedruns not really, since there is very little actual combat and not enough time to gather the needed equipment and army experience for template changes. But during mid or lategame, especially as a minor nation, it's always quality over quantity.

Retimed; time starts with first ingame action.

Please read the rules before submitting. The timer needs to start with your first ingame action which was opening the recruitment window in your case. Actual time is 22m 46s 883ms. I've changed it accordingly.

Trick documentation from the Discord:

Equiptment Lendlease Glitch (1.3.3 - 1.4.2) Fast Naval Invasion (All) World Tension Spiking (1.3.3) Soft WT Spiking (All) Order 66 (All) No research Paratroopers (1.5.4) Template Change Paratroopers (???) Changing Paratroopers after Drop (All) Force Allying (All) Instant Change Doctrine (1.3.3-???) Peace Conference Puppet Divisions (All) Free Minors in big war (All) Keeping all Divisions in Civil war (1.5.4 Naval) (1.5.4-1.8 other country) Manipulating Civil war divisions (1.5.4-???) Preparing Civil war divisions (All) Yugostrat (Fast War with Allies) (1.4.2+) Skipping Great Patriotic War (All?) Power Inflation of potential Allies (All)

Courtesy of @SurvivalMichi

Yup, has been fixed with one of the recent patches.