FX2 & FX3 in rekordbox vs Djm design

Dear PioneerDj, 

Had a discussion with some fellow djs a while back and the question was raised as to why are there no dedicated buttons on Rekordbox gear for FX2 and FX3 on the more recent controllers, if they are in fact designed to work with Rekordbox. 

If the software on hand 1 fx per deck, then the djm-type set up on controllers as they are now would seem most practical, but Rekordbox has 2 more fx slots in the software and nothing to control it on the hardware. 

Are we to expect this trend continuing in future gear? Are updates going to be made in Rekordbox where fx2 and fx3 will be obsolete? Just some questions being asked by some loyal customers.