no they werent as vulnerable this year as they will be in 2022. democrats had a race they were going to easily lose in alabama. so they had to pick up four total seats instead of just two like they do in 2022. 2022 is obviously a better map for them...
They were as vulnerable as everyone expected the blue wave to take over and the Democrats take over the majority in the Senate. Just because a seat is up for grabs doesn’t necessarily mean that it will flip. This election cycle should have taught people that.