If the template is random, then the castles should be fixed. The idea behind the "Bishop system" was that the castles were chosen first, and then the random template. And after playing, for example, 8mm6, you would think about whether to restart in order to get to Jeb with the same pair. Priorities in the draft, accordingly, changed slightly.

In the draft of 15 templates, there is no point (unless for a decisive game in case of a tie), because in 95% of cases, players will choose something from the standard set, and increasing the pool of templates "just to have more" is not entirely correct; you could even put in 50 templates.

The essence of the previous system was to force the opponent to play with the most inconvenient templates, i.e., to play on your own terms. The idea was quite sound.