Dear colleagues, 

Here is a wordmark display of letters followed by apostrophe vs the same letters with caron or horn.  See the Comment at the end of Section 5.4.

My sense is that, while side-by-side the difference is spacing is apparent, in a domain name a user would be unable to spot the difference.  And thus, per the exclusion of punctuation and marks similar to punctuation, these code points ought to be excluded.  (Personally, I don't think the exclusion of punctuation, except for periods, makes much sense.  But that's the rule we are supposed to be following.)