Status: Ready with Nits 

Nit 1: section 1, paragraph 1, last sentence. 

When you refer to [RFC8725] for recommending "explicit typing" in section 1, please add the section (3.11) in [RFC8725] that discusses the "explicit typing." 
It would help the reader of this document easily cross-reference your work.

Nit 2: Section 3, paragraph 1, first sentence. 

Same comment as NIT 1. 

NIT 3:  Section 3, paragraph 1, English sentence grammar 

Perhaps you want a ":" instead of a ";".  If not, perhaps you want to break this sentence into two sentences. 

Old Text:/
   The case for explicit typing of COSE objects is equivalent to the
   case made for explicit typing in JSON Web Token Best Current
   Practices [RFC8725]; explicit typing can prevent confusion between
   different kinds of COSE objects./

Simple fix: /
   The case for explicit typing of COSE objects is equivalent to the
   case made for explicit typing in JSON Web Token Best Current
   Practices [RFC8725]: explicit typing can prevent confusion between
   different kinds of COSE objects./