What do I see such changes would bring:
This will throw so many players out from competing GW,
like up to top 50, mybe even top 25 guilds can handle this raise right now.
Let's have some numbers.
For now, keeping viable rooster for 3 line is about 20-25 champions maxed - it's hard to keep up already even for paying players.
How much 5 lines req would raise this ceiling up to? about 35-40.
And it's not just 2 times more - it's about 2 months of additional gearing.
We don't have such time yet.
On the other hand, did you see how GW going on pre orange levels? It's totally oposite - creeps waves are your main enemy and the nightmare you have to deal with.
I think the right way is to rehab creeps' stats accordingly - crabs don't kill tanks anymore and cauldrons cant kill tanks even under burst fire (which is their purpose) Everything else is just a joke.