IMHO The truth is that many of those who are still using Pascal don't want to change anything (I even can see it from this forum and others).
I listened to different interesting ideas how theoretically Pascal could be updated even 20 years ago.
But even then these ideas met strong resistance from grandfather Pascalists (40 and up).
I know that some oldfart hardly perceive even, for example, generics.
They just want everything to remain the same as it was 20-30 years ago, but at the same time they want Pascal to remain in the trend.
But it doesn't work that way.
The presence of fashionable features does not change anything about the popularity of a language (except for C++ probably). For example: C, 3-rd in TIOBE index, which is in fact frozen and C++ makes all the cream. Or JavaScript (6th), which is ridiculous in this regard. Attempts to improve in TypeScript only led to a failure (37th).
The only thing that matters is backing from the large corporations and the big hype. Which is a "Catch-22" actually.