You mean soft Brexit surely? She's not pushing for hard Brexit but certainly could be more likely to end up that way without a large majority.
This is what the Conservative manifesto says:
The negotiations will undoubtedly be tough, and there will be give and take on both sides, but we continue to believe that no deal is better than a bad deal for the UK
...
As we leave the European Union, we will no longer be members of the single market or customs union
That doesn't sound like a soft Brexit and we could well end up with no deal at all.