Are LLLL names in danger?

There are two recent cases which might be somewhat alarming to any LLLL.com owner:

Chewy agains chwy.com:

https://www.wipo.int/amc/en/domains/search/text.jsp?case=D2019-1845

Dell agains drll.com:

https://www.adrforum.com/DomainDecisions/1865104.htm

I personally think finding "confusing similarity" in four letter domains is taking it a bit too far…

Although in these cases, the respondents did not appear to have done the best they could.

Are LLLL names in danger?