Maybe they put a lot of faith in the team after 2021? Sale was a non-factor and the team went pretty far.
The big problem with investing in pitching is the massive risks. While people mistakenly claim Barnes hasn’t been the same since signing a contract, they often overlook is pretty much true for Sale.
It’s easy to say “get more pitching”, but unless you already have it, there’s too much that can and often does go wrong. And sure, fans want the team to take the few bad years to go along with the fewer good years a free agent pitcher would bring. And ask any fan, they tell you they don’t mind the off years. You know, until they show up. Like pesky credit card bills.