Sealed classes - would you want them in D?

[Tony]

On Friday, 11 May 2018 at 03:32:25 UTC, Uknown wrote:
> Also, classes are pretty inconvenient because they are hard to 
> use without the GC.
>
I find it surprising that a language that had Garbage Collection 
as one of its' key features, now has that feature looked at as an 
inconvenience. Was it a design error, or did the wrong class of 
users latch onto the language?