For me it is the “fall of the Berlin wall” and the celebrations after the border openings.
It didn’t use to, the b was added back in cause the Latin word has one and making words look like Latin was all the rage at one point.
At least “subtle” is ultimately from Latin, and the Latin word (subtilis) does have a /b/.
There are worse cases - like the “s” in “island”. It was never pronounced.