SEN city VS SEN Invitational

what is the difference bewteen sen city and sen invitational?
like, am i missing something? both are hosted by sen, but why the different names? why 2?

bc they're different tournaments

Ludwig and Tarik got canceled so SEN doing another event

i'm assuming bigger price pool and the teams will show what might be their final rosters for next season

sen city was basically a showmatch tournament for the new roster

sen invitational is an actual tournament.

Why not?