Is it fair to criticise a game for being too hard/easy?

[Robert_Downey_Jr.]

It matters how it's difficult. If it's mostly easy but just has no checkpoints and a really hard part at the end of a level so you keep dying and having to replay all the easy parts then that's a stupid difficulty. They should just have a checkpoint before the hard part. Lives systems are also horribly outdated especially in one shot kill games where it makes no sense to not have frequent checkpoints as there's no accumulation of damage so you being in the last part of the level means you've done it all perfect and should have to replay the whole thing again.