Its different, because you're not changing rules, or using different expansions, you're removing specific cards! Which are certainly not auto-wins if they come out late in the game, and probably not autowins either for certain players. Its often the combo of say Raven and Killdeer/Francis Gull that is close to an unstoppable powerhouse.
I mean where does it stop, will someone then want to take out the next most powerful card ... in their opinion?
The problem might be solved, by adding the Euro expansion, and maybe others, which will reduce the chance of these combos occurring, and add extra strategic options, not necessarily focused around a grasslands egg generation engine.
Plus if you see Killdeer/Francis Gull/Ravens and the other one I can't remember, try to get them first! Or don't let someone take both if possible!
Anyway luck is a factor in the game, although it may be reduced by seeing more cards ... in itself a strategy.