I think this is an understated part of this off season. The Jays were in a great spot last winter when they were one of maybe 3-4 teams that was actually spending money. It made signing top free agents far more realistic, and Shatkins did the right thing by spending big when the opportunity was there. A Springer type of FA in this winter's market is likely much more coveted and would be more difficult to sign. This winter has way more teams involved, which means more competition for FA's (driving the prices up), and way more money being spent in general. Granted, the Jays should be a much more attractive team to FA's after 2021 than they were after 2019-2020, so maybe that helps a bit, but they are still in a tough position when it comes to free agency.
In that scenario, maybe Rodon actually is a realistic target. It's possible that teams get scared of his medicals/injury history combined with his likely asking price (Boras), leaving him looking for a contract late into the winter. To some degree, that's how the Jays ended up with Ryu, as they were the only team willing to take the risk of giving him more than 2-3 years. With more conventional FA targets, even with the success of the 2021 season, I think the Jays are at more of a disadvantage again.