Honestly, I don't agree with this. Kindred is a fairly weak champion without her stacks. and it is fairly easy for a team with about 6 brain cells to deny her stacks.
Do you see that mark on scuttle? the Jungler should IMMEDIATELY stop what he is doing and go deny the stack. And the Mid laner should rotate up to help with the denial.
If you are marked by kindred you should ward up and play safe.
It's like Nasus, but even easier to deny. If she doesn't get her stacks she gets dicked. So you just aren't denying her hard enough. While I understand the complaint of "why should a champ be so strong that we have to be hyper-vigilant to stop her from getting her stacks" well its because she is actually just trash without them.
Now I'm looking at this from the perspective of a jungle main, but 90% of kindreds I play against don't get her first 4 marks (she gets her bonus range at 4,7,10,13,16,19,22,25 stacks) until like 16 min cause I just deny her has hard as possible. Then I keep track of who is marked and try to make sure I'm always there to make sure she can't get the stack. This basically forces the enemy team into a 4.25 vs. 5 cause she is like a 1/4 of a champ without her stacks.
You need to have a denial mindset. She is a stacker, Her true power comes from her passive and as long as you keep her denied she is useless.