The block reference with text alias is as follows:
[hello world](((62c0e975-95c3-4dd0-8408-942fef56b567))) is lorem ipsum…
And the linked content of ((62c0e975-95c3-4dd0-8408-942fef56b567)) is consectetur adipiscing elit.
Currently, when exporting to the text, the whole sentence will be:
consectetur adipiscing elit is lorem ipsum…
However, I would like it be like:
[hello world](consectetur adipiscing elit) is lorem ipsum…
In other words, do not remove the link text of block references. This is really useful for academic writing. Please consider adding the option. Thanks!
Outside of Logseq the Block Ref IDs don’t mean anything they can’t be anchors in a link either and because of that a more logical approach would be 
[hello world](<Logseq Page Name.md> "((62c0e975-95c3-4dd0-8408-942fef56b567))") is lorem ipsum…
Logseq accepts spaces in the name of the Markdown files so Markdown needs angled brackets to accept URIs with spaces.
The above suggestion places the Block Ref as the Link Title (appears as a tooltip in Markdown rendering in browser) and at least one retains the file where that ID is mentioned and can search for it in that file, with a text/markdown editor or with a script. I have no idea if those Ref IDs can be made into HTML anchors in any way …