Yes, everything is fine – not knowing the specifics of diamond golems isn't fatal. You don't encounter them often anyway. I'm also gradually losing my practice in the game – it's been a while since beating the computer became interesting, and there are no more fans of the third game among my friends... For example, I've already forgotten the order in which elementals are distributed across levels in the Conflux... but in the first version of the game, they were also neutral creatures! ;)
In general, neutral monsters aren't a serious threat, unless a legion of them is guarding an important relic...