@Shayman As I understand it, they signed up to play in a conference (the GNAC) spanning Oregon, Washington, BC, and Alaska, but that one ended up dumping football a couple years back so the football teams got folded into the Texan conference. To play football in USports, all your other athletic stuff has to go through them too, so when their membership in the Texan conference expired, they had three options:
1. Join another NCAA conference as an affiliate for football only
2. Join USports or another NCAA conference for all sports
3. End the football program
I think they tried number 1 and couldn't find a conference that'd let them join on acceptable terms, and they decided (probably correctly) that it'd be a worse outcome to lose NCAA competition for soccer, basketball, etc. if they went with number 2. So they wound up losing the team for lack of a conference to play in.
@khird I think you're right, but it's a shame SFU seems to think Canadian university sport isn't good enough for them.