Can someone explain all those sudden complaints about forgetting Smite?

Of course forgetting Smite is going to ruin your jungle and probably ruin the game for both you and your team. However, it is not like this is some sort of new thing. Forgetting to put Smite was always crippling ever since they introduced the new jungle items back in pre-season 5.

Forgetting to use Smite was bad before that but wasn't completely crippling since you could still buy jungle items even without Smite, thus it was still possible for you to not be behind even without Smite, the only problem would be contesting objectives since not going Smite would allow the enemy to easily steal them, but proper warding and making sure to never go for an objective without the enemy jungler being dead could still prevent that.

But since Riot decided to only allow champions with Smite to buy jungle items, not going with Smite when jungling, from an annoyance, became a major, fatal problem that could put you at a disadvantage for the rest of game, since your early clears will be incredibly slow and without the bonus experience from jungle items you will be starved and set incredibly behind compared to the rest of the players from both teams, with hardly any chance of comeback since you will lack farm and levels.

However, as explained above, this started to happened a long time ago. Why people are complaining about that ONLY now?