What got the devs to behave that way, just renaming? I'd wager one likely possibility is an architect made a decision on high for "and so now all will be TS, be

What got the devs to behave that way, just renaming? I'd wager one likely possibility is an architect made a decision on high for "and so now all will be TS, because TS is Good" without much internal support but enough political power to make it so, at least on paper. Of course things aren't going to go well in that case. Incrementalism isn't a benefit when there's not a broad desire to change to the new thing, it just adds to the mess. Such projects would be better served sticking with pure JS and making that better.