There are many other ways to get exposure. A few years ago my son was invited to the tryouts. That was when you had to play OBA and only a few select elite teams. He chose to play in a tournament with his team instead.
BB has always been a good Ole boys network in Ontario. I was especially true with the NAT team.
we were around when Team Ontario was the Ontario rep team. A dispute led to TO separating from OBA and a long turf war developed which barred elite players from the newly developed OYT. The OYT was grossly under powered and after about 5 years of failure they opened the doors to elite players. They then became a power house winning the Canadian championship at Melville Sas. several years in a row.
I wouldn't sweat it. We had lots of pro interest and college offers. My son made TO when he was 16U but chose not to spend the $5000 it would cost back then. He played for a great team and it cost $1200.