Only a fool would stand in the way of progress. But remember how BA made a big stink about INS, and insisted a flight nav be carried until it was absolutely determined the equipment was reliable as claimed?
Theres nothing basicaly wrong using a FMC, MCP, AP, etc and other electronic toys. The problem is they CAN fail and HAVE failed, either through loss of electrics, the gadget itself fails, EI, coffee spillage or a host of other reasons. Because they are NOT failsafe, they should not be solely relyed upon. Therefore basic piloting skills must be maintained.
A simple experiment can help you judge wether you are still a pilot or not:
How do you react upon arriving at your electric aircraft on a dark and stormey night, away from major base, and discover the FMC, AT and APs are MEL'ed inop?