Cf that other thread.
The problem is that the other set is not updated (unlike those taken from Wikipedia).
If someone makes the missing ones with the style of the old ones each time we need new flags, we can switch back to these.
But I don't really have time for drawing all these, hence why I chose the fastest solution (and also because I kinda prefer the solution that respect flags ratio, but I can live without that, as indeed the colors were better on the old ones)