Just an Opinion!
Now, if one looks at Paragraph 4(k) of the UDRP Policy, then the scenario of non-implementation / approaching independent resolution w.r.t to the decision of the Panelist(s) (one or three) is as mentioned:
My contention is (could be opposed too) that the remedy available for the cctld (let's say at any national dispute redressal level for eg. INDRP), would be more robust if being compared to what remedy is available for the gtld domain name disputes at UDRP Provider(s). The reasons I would surmise: