From my experiences of my games against tower- decks, i have to say, what matches to other posts in the other topic, that these type of decks just relys on the deck the opponent is playing. This comes from the fact that a tower- deck need to rely on, what can i say, a big amount of tower- cards with costs of 3 recources. Since this cost-splitting seems to be its great advantage, this can turn very fast into a disadvantage.
You need to discard a, lets say a gateway or a complementation ritual? For ambush, you need at least 8 recruits, which are used most of the time for catapult or other ones. Most times you have either to take mediator or samurai, but then, you wasted one or two slots of valuable uncommons,which makes your deck slower. (Yes, i am playing a Titan deck and you cant tell me that i is too slow to cope with a tower- deck)
When your enemy builds tower fast, you dont have any usefull recource left with which you could use a finisher, since tower destruction cards just reduce by a low amount.
You cannot also cope with rushes well (Only if you are faster), bcause you need to bricks for your tower- cards and are standing there without properly defense.
Other decks are just more flexible. beast/frenzy decks got enough bricks and gems for supporting cards (even if they use almost none recruits). They can play Troll Bridge, Cathedral or, if needed, an apocalyptic rain. With a Tower- Deck, you use all your recources at the same time and any other card which makes your deck more flexible just slows you down, which gives your opponent the chance of rushing you or overbuilding you.
On the other side, if you don't need flexibility, in cases where a deck is slow or builds much wall for defense, then this advantage is the reason why tower- decks are winning a game.