I find DPP perfectly adequate for most needs. Of course it is not as powerful as Lightroom etc., but it does the job, nicely and efficiently. Every picture I take starts its life in DPP, and I do have Lightroom but will not be upgrading to the CC version (yet).
Of course eventually we will all have 5D Mark IVs, 1D X Mark IIs, and dare I say it a 7D mark ii (or iii
), plus new lenses etc and Adobe's technology will move forward just as quickly, so eventually we may not have a choice of upgrading, but need to out of necessity.
Adobe are a business and I can see their logic.
What I really, really do not get is why I, or anyone else, would want this on their phone. I never edit anything on my phone.