I think if towers are just buffed at no condition it would make the game more boring
I'm not saying they don't need some kind of buff they do feel like paper and are just a princess in distress. But what i'm saying is that think about it, if towers are buffed to be more potent either defensively or offensively then people will just tower hug and stall on towers making the game a very "wait for them to make a mistake " type of game. So the only way to win a proper siege would be the baron buff, and so the game would turn into a baron game to siege properly. Or else people can just wait at their base tower and farm up.
If towers are buffed, which they do need some sort of help, they also need to have a drawback, something to weaken them as-well.