Eh lando-i commonly runs knock off for latis and celebi, cress honestly isn't too relevant in OU, and pretty much all the new megas released in ORAS are physical attackers. This can be good for lando-i because then it faces less competition as a good special wallbreaker, but with all the new physical attackers, as Worthlessnoob mentioned, this makes lando-t's ability to check physical attackers even better, and considering that atm lando-t is one of the best if not the best scarfers, I think landorus-t will probably be a little bit better than landorus-i.
I'm fine with doing both forms in the same week, even though they have pretty different roles.
I mentioned pursuit support because Lando doesn't beat the Latis or Celebi, but knock is good to cripple them.



