What Steve2 said.
Yes, they are technically different, but the entrenched typology bled into all aspects of JW dogma. The meaning of the Revelation prophecies were stained by typology. Now the stains cannot be removed, no matter how much the WTBTS tries to whitewash their doctrine.
Jwism is built entirely upon typology, because it's founders were entrenched in Adventism. Adventism cannot "jive" without types/anti-types. Now, the best the WTBTS can do, is to try and create an alternate timeline and reality for their sheeple. They began this process by kicking CTR out of the FDS club.
Given enough time, Rutherfraud must also be kicked out, because he is now the original FDS and his dogma was bat-shit crazy too. This is not a problem for the WTBTS, because it's their standard operating procedure to move the goalpost. 30 years from now, the FDS might be Mark Sanderson, who the hell knows??