He wasn't exactly chopped liver in 14/15. He is quite durable and if he remains so, will likely roll past 3000 hits in the next 5 years. He also is an excellent fielder in terms of modern defensive metrics. Cano very well could end up as one of top 5 or 6 second basemen of all time. That should be enough to get him in.
Those stats in 2014 and 2015 were not really representative of a HoFer in his prime years. Your point assumes no drop off here from 34 to 39. That's quite possible but if there is any material drop off in those later years then it might be tough. My main point is that while odds are in his favor it's nowhere near a lock at this point in time.