Watching Lankinen vs Silovs...Philosophically Torenius is a more relaxed goalie coach, he normally works with each goalie and doesn't try to change things overmuch unless things really aren't working. In ther past he's had to serve two masters in terms of the goalie themselves and their home clubs and what is implemented there.
Lankinen is just a more mature guy, his play style is mostly set. Silovs is still finding his identity and he's doing it from a less developed technical base.
You can see that a lot of Silov's decisions are rooted in the old Clark "go into the RVH automatically every entry" system, and since that's his established base (for what little there is) that's going to be a struggle in the NHL. It's caused lots of issues for Demko and Demko is a much better goalie.
We'll see if Lankinen can keep this up with increasing workload, he's never been a full time starter. Things just get harder the more you need to be consistent over long periods of time.