Unfair Advantage?

Just watched the Zoe champion spotlight and all I could think was, "Again with the teleporting." Other champions like Kayn and Bard can move through walls, but having all those Flashes and movements on Zoe?

I wonder...

Back when I first started playing in 2011 obviously the technology was different. It almost seems like the newest champions have an unfair advantage over the older ones just because of technology. Like Riot COULD redesign, say, Sona to also teleport / affect the laws of the in-game physics with her ultimate but they won't because "it doesn't fit her story."

Also Summoner's Rift has been re-designed over the years.

I wonder if we've reached some kind of unintended technological exploit. Whats next? "Error: To play this match you must have holographic modules installed in your room to make Nocturn's younger, angrier brother's ultimate scary in real life for 'player expirience.'"

What do you all think?

Edit: I don't mean to complain Its just an opinion here. But what I'm trying to say is that the older champions were created before the newer ones could change the in-game laws of physics.