Graterol with a damaged trade reputation...
I don't see that as a real problem. The Twins can pull back Graterol and put him in the bullpen this season.
At that point, his value will be based on performance and no one will really care about what happened in February.
On the other hand, Boston obviously has a directive from on-high to get payroll under the competitive balance number and they CAN'T do that without shipping both Betts and Price to someone. The number of "someones" who can take on that kind of money includes: the Dodgers. I don't see anyone else with anything approaching that kind of payroll flexibility.
And LA just energized their fanbase by acquiring who is probably the second-best player in baseball. If they miss out on Betts, it will look really bad for them.
Boston and LA are far more invested in seeing this trade through to completion than the Twins, who can likely pivot to Pittsburgh or someone else to acquire an arm... or they just decide to stand pat.