... but especially for a small team, having people able to cross-operate on adjacent pieces of the tech is vital. You can't just not develop if all your Rustace

... but especially for a small team, having people able to cross-operate on adjacent pieces of the tech is vital. You can't just not develop if all your Rustaceans catch COVID at the same time. So "there's a huge bifurcation between people who know this language and people who don't" is a good reason to pick another language. As with so many such techs, network effect can dominate other benefits.