It really only affects users who left with all or part of their hashrate in the last few months. If you weren't paying attention that this was coming and were so inclined to move all or some of your hashrate back before the switch you lost shares, if a block is found in the timeframe that you would have still received a payout
Moving forward you can re-evaluate and decide if you want to come back - 3 days and you are fully ramped up. This is beneficial to any small miner who couldn't fathom waiting 60 days or whatever it was for the full 5ND ramp up.
It does suck for people who ramped up fully under the steady reminder that you would receive a 5ND rampdown period. Like any service though it's at the discretion of the service provider.