In the case of the military I'd say the real reason is political. After the fall of the Berlin wall, Europe collectively agreed (knowingly or not) that war is now a thing of the past and the goal should be the complete dismantling of militaries worldwide, starting with Europe. Lead by example, etc.

It's subtler than that. Europe was just constantly reminded by its big brother not to duplicate NATO structures, which are dependent on the US.

They agreed that war was a thing of the past, but still continued to push for NATO to allow new members anyway, ironically causing Russia (and China and everyone who is NOT in NATO) to suspect that war was NOT a thing of the past and therefore never quite abandoning their military completely. Unpopular opinion: the West should either NEVER have abandoned its military production (so as to maintain NATO actual preparedness for war, given that's the only reason for its existence) OR it should just have dismantled NATO and announced to the world that it strongly believes war is a thing of the past, and that other countries are advised to follow suit. But we actually chose the easy, halfway path: keep NATO, keep our militaries "looking strong" (which gives the signal our rivals should also do the same, obviously), but not actually be ready for any sort of major war and as the article points out, even lose actual capacity to become ready for war within any realistic timeframe. The worst possible outcome :(.