B6-KE Interline

Hi,
This article came up when I was looking if I could redeem miles from B6 onto KE. Here is my itinerary:

KE 086 (JFK - ICN)
9 days
KE 081 (ICN - JFK)
B6 1117 (LGA - TPA)
5 days
B6 1116 (TPA - LGA)

Now the article says: "Effective this week, customers can book tickets for combined travel on JetBlue and Korean Air through New York John F. Kennedy International Airport (JFK), Washington Dulles International Airport (IAD), and Los Angeles International Airport (LAX). "

I'm not sure if airport changes are allowed in this situation (JFK to LGA), but if it isnt, an alternative itinerary is:

KE 086 (JFK - ICN)
9 days
KE 081 (ICN - JFK)
B6 325 (JFK - TPA)
5 days
B6 426 (TPA - JFK)

This is just a slight change in my schedule, but works for me nonetheless. I'm supposing the last flight wouldn't count for KE mileage since its not a stopover from ICN, so thus my best itinerary would be:

KE 086 (JFK - ICN)
9 days
KE 081 (ICN - JFK)
B6 325 (JFK - TPA)
5 days
B6 1116 (TPA - LGA)

Now with this itinerary, assuming I asked them to book the first three flights under my KE Skypass account, and the last flight on my B6 account, would I get that extra 876 miles for B6 325 in addition to my 13758 miles I get from the KE flights?

KE doesn't show B6 as a partner airline, while B6 does..

Thx FT community! ^