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Basically, the point is that the Sylvan faction is far from the strongest, but that only adds to the fun of playing them. Winning easily with a lot of mistakes isn't my thing; I like challenging games. The Sylvan faction doesn't forgive mistakes at the beginning, and later on, you need to build your city strategically and defeat neutral creatures with minimal losses. Overall, playing as Sylvan is quite difficult, but also very interesting. Everything written above is just my opinion.
P.S. Wingael with 1% is the optimal option because with 2%, he's really overpowered, and with 0.5%, he's useless. So, let them finally leave him alone and focus on much more overpowered heroes, and let someone balance the factions properly. Because it really feels like there's a conspiracy against the Sylvan faction; every time, they cut something, and if they add something in one place, they cut it back in another. Let's just ban all the playable heroes for the Sylvan faction and increase the amount of wood needed to build the city again, so that the 3rd upgrade is only available on the 2nd week. Sorry - I just had to vent.