I hate the idea of the jungle timer changes
But it doesn't make it impossible to deal with counter jungling. You know your buff is about to spawn? Watch where the enemy laners are. Ask your lane to push and call MIA if someone leaves. And if you anticipate an invade, pop a ward on your buff near an important choke point bush and do a smaller camp or something, your buff isnt going anywhere without you seeing.
Also, if I can get my enemy mid and jungle to come to my camp, or better yet, the enemy bot lane coming to my camp, I would be more than happy to trade a blue for the enemy losing several waves and potentially a tower. You just have to think harder and watch your map more, as well as ward more.
Not having vision and communication has always been an issue with bad players, this is just another incentive to change that. This isn't just a 1 sided fuck you change guys, it can be worked around
And btw, I do main jungle.