I did not research the topic enough to give a good answer. So please do not take this as an answer, but rather as a thought stream. I am not really sure whether any of this is correct.
I do think that making scuttle into a more important objective helps, because scuttle is an objective nearby to lanes: therefore fighting over scuttle has a much higher probability of evolving into a multi-character skirmish and scuttle theft by the laner is much more impactful against the enemy jungler.
being near also has less opportunity cost of losing CS or having your opponent power shove the tower (remember many top lane champions kill towers super fast)
What kind of proactive moves you can basically make against the enemy jungler: you can set up vision in his path, and then you (or your team) makes plays based on that vision, you can contest the enemy jungler on a known location, or you can steal camps.
The first option is a low impact move. As previously, it is doable.
As for second option: Previously, it is hard for laner (especially in low elo) to steal camps. Because for the most part the camps are not up. If the jungler is ganking (known location, therefore safer to invade) his jungle is empty, and if he is farming, than an invade is dangerous. Now the jungler has more known locations, and more trouble pathing efficiently towards them while clearing own jungle. Therefore both the opportunity of invading increases, and also the potential reward.
Third option, to contest the jungler on a known point. That is obvious. The more places that the enemy jungler NEEDS to be in, as opposed to chooses to be in, the more opportunities you have to make a move on him on the objective or in transit. This is equivalent to what existed in seasons 3-4 with blue buff, where a buff transfer to an otherwise mana-starved laner (blue gave AP too, and many mids were "give me blue so i don't have to build a tear"!) was an important mini-event and many ganks occurred as a result of being able to time and ward the enemy blue.
Whereas on previous patch:
the jungler clears efficiently in own jungle. As you are unsure of his location, dangerous to roam and ward. Then jungler ganks, but camps are cleared and nothing to steal. Contesting over scuttle is more dangerous as you do not have the backup of your jungler, and the rewards are smaller.
in summary the new patch has the same amount of interactions initiated by jungler, but more interactions initiated by laners of several types.
None of this addresses the RNG issue though.