I don't agree with that. If your an early game bully ignite is still a good pick. Teleport makes it a hard decision though.
Teleport just makes every lane a "medium" matchup imo.
Like, Jayce vs Irelia? Nbd, take teleport. I was playing jayce and I went 0/2 to their Yorick until I got a vamp scepter, then I could just sustain through his harass. If I had taken ignite I would have been pretty much useless, but teleport allowed me to farm safely.
Also it makes bot lane dives very risky. I cannot tell you how many double/triple kills I've snagged TPing bot.